diff --git a/src/app/core/auth/auth.interceptor.ts b/src/app/core/auth/auth.interceptor.ts
index f4e7aa2fd3..3366cdb3d8 100644
--- a/src/app/core/auth/auth.interceptor.ts
+++ b/src/app/core/auth/auth.interceptor.ts
@@ -251,7 +251,6 @@ export class AuthInterceptor implements HttpInterceptor {
 
     // Pass on the new request instead of the original request.
     return next.handle(newReq).pipe(
-      // tap((response) => console.log('next.handle: ', response)),
       map((response) => {
         // Intercept a Login/Logout response
         if (response instanceof HttpResponse && this.isSuccess(response) && this.isAuthRequest(response)) {
diff --git a/src/app/core/core.module.ts b/src/app/core/core.module.ts
index 07b600084e..6e8e2abefb 100644
--- a/src/app/core/core.module.ts
+++ b/src/app/core/core.module.ts
@@ -144,6 +144,7 @@ import { Vocabulary } from './submission/vocabularies/models/vocabulary.model';
 import { VocabularyEntriesResponseParsingService } from './submission/vocabularies/vocabulary-entries-response-parsing.service';
 import { VocabularyEntryDetail } from './submission/vocabularies/models/vocabulary-entry-detail.model';
 import { VocabularyService } from './submission/vocabularies/vocabulary.service';
+import { VocabularyTreeviewService } from '../shared/vocabulary-treeview/vocabulary-treeview.service';
 
 /**
  * When not in production, endpoint responses can be mocked for testing purposes
@@ -268,7 +269,8 @@ const PROVIDERS = [
   FilteredDiscoveryPageResponseParsingService,
   { provide: NativeWindowService, useFactory: NativeWindowFactory },
   VocabularyService,
-  VocabularyEntriesResponseParsingService
+  VocabularyEntriesResponseParsingService,
+  VocabularyTreeviewService
 ];
 
 /**
diff --git a/src/app/core/data/data.service.ts b/src/app/core/data/data.service.ts
index 5c56b7f040..b478c9a5c2 100644
--- a/src/app/core/data/data.service.ts
+++ b/src/app/core/data/data.service.ts
@@ -115,12 +115,6 @@ export abstract class DataService<T extends CacheableObject> {
 
     result$ = this.getSearchEndpoint(searchMethod);
 
-    if (hasValue(options.searchParams)) {
-      options.searchParams.forEach((param: RequestParam) => {
-        args.push(`${param.fieldName}=${param.fieldValue}`);
-      })
-    }
-
     return result$.pipe(map((result: string) => this.buildHrefFromFindOptions(result, options, args, ...linksToFollow)));
   }
 
@@ -351,7 +345,7 @@ export abstract class DataService<T extends CacheableObject> {
     return hrefObs.pipe(
       find((href: string) => hasValue(href)),
       tap((href: string) => {
-          this.requestService.removeByHrefSubstring(href);
+          this.requestService.removeByHrefSubstring(searchMethod);
           const request = new FindListRequest(this.requestService.generateRequestId(), href, options);
           if (hasValue(this.responseMsToLive)) {
             request.responseMsToLive = this.responseMsToLive;
diff --git a/src/app/core/submission/vocabularies/vocabulary.service.spec.ts b/src/app/core/submission/vocabularies/vocabulary.service.spec.ts
index b0c0dba069..94ac30ab56 100644
--- a/src/app/core/submission/vocabularies/vocabulary.service.spec.ts
+++ b/src/app/core/submission/vocabularies/vocabulary.service.spec.ts
@@ -20,6 +20,7 @@ import { VocabularyService } from './vocabulary.service';
 import { getMockRequestService } from '../../../shared/mocks/request.service.mock';
 import { getMockRemoteDataBuildService } from '../../../shared/mocks/remote-data-build.service.mock';
 import { VocabularyOptions } from './models/vocabulary-options.model';
+import { VocabularyFindOptions } from './models/vocabulary-find-options.model';
 
 describe('VocabularyService', () => {
   let scheduler: TestScheduler;
@@ -208,9 +209,9 @@ describe('VocabularyService', () => {
   const endpointURL = `https://rest.api/rest/api/submission/vocabularies`;
   const requestURL = `https://rest.api/rest/api/submission/vocabularies/${vocabulary.id}`;
   const entryDetailEndpointURL = `https://rest.api/rest/api/submission/vocabularyEntryDetails`;
-  const entryDetailRequestURL = `https://rest.api/rest/api/submission/vocabularyEntryDetails/srsc:SCB110/${hierarchicalVocabulary.id}:testValue`;
-  const entryDetailParentRequestURL = `https://rest.api/rest/api/submission/vocabularyEntryDetails/srsc:SCB110/${hierarchicalVocabulary.id}:testValue/parent`;
-  const entryDetailChildrenRequestURL = `https://rest.api/rest/api/submission/vocabularyEntryDetails/srsc:SCB110/${hierarchicalVocabulary.id}:testValue/children`;
+  const entryDetailRequestURL = `https://rest.api/rest/api/submission/vocabularyEntryDetails/${hierarchicalVocabulary.id}:testValue`;
+  const entryDetailParentRequestURL = `https://rest.api/rest/api/submission/vocabularyEntryDetails/${hierarchicalVocabulary.id}:testValue/parent`;
+  const entryDetailChildrenRequestURL = `https://rest.api/rest/api/submission/vocabularyEntryDetails/${hierarchicalVocabulary.id}:testValue/children`;
   const requestUUID = '8b3c613a-5a4b-438b-9686-be1d5b4a1c5a';
   const vocabularyId = 'types';
   const metadata = 'dc.type';
@@ -490,7 +491,7 @@ describe('VocabularyService', () => {
       scheduler = getTestScheduler();
 
       halService = jasmine.createSpyObj('halService', {
-        getEndpoint: cold('a', { a: endpointURL })
+        getEndpoint: cold('a', { a: entryDetailEndpointURL })
       });
 
       responseCacheEntry = new RequestEntry();
@@ -517,9 +518,10 @@ describe('VocabularyService', () => {
       spyOn((service as any).vocabularyEntryDetailDataService, 'findById').and.callThrough();
       spyOn((service as any).vocabularyEntryDetailDataService, 'findAll').and.callThrough();
       spyOn((service as any).vocabularyEntryDetailDataService, 'findByHref').and.callThrough();
+      spyOn((service as any).vocabularyEntryDetailDataService, 'findAllByHref').and.callThrough();
       spyOn((service as any).vocabularyEntryDetailDataService, 'searchBy').and.callThrough();
       spyOn((service as any).vocabularyEntryDetailDataService, 'getSearchByHref').and.returnValue(observableOf(searchRequestURL));
-      spyOn((service as any).vocabularyEntryDetailDataService, 'getFindAllHref').and.returnValue(observableOf(entriesRequestURL));
+      spyOn((service as any).vocabularyEntryDetailDataService, 'getFindAllHref').and.returnValue(observableOf(entryDetailChildrenRequestURL));
       spyOn((service as any).vocabularyEntryDetailDataService, 'getBrowseEndpoint').and.returnValue(observableOf(entryDetailEndpointURL));
     });
 
@@ -528,7 +530,7 @@ describe('VocabularyService', () => {
     });
 
     describe('findEntryDetailByHref', () => {
-      it('should proxy the call to vocabularyDataService.findVocabularyByHref', () => {
+      it('should proxy the call to vocabularyDataService.findEntryDetailByHref', () => {
         scheduler.schedule(() => service.findEntryDetailByHref(entryDetailRequestURL));
         scheduler.flush();
 
@@ -563,7 +565,7 @@ describe('VocabularyService', () => {
 
     describe('getEntryDetailParent', () => {
       it('should proxy the call to vocabularyDataService.getEntryDetailParent', () => {
-        scheduler.schedule(() => service.getEntryDetailParent('testValue', hierarchicalVocabulary.id));
+        scheduler.schedule(() => service.getEntryDetailParent('testValue', hierarchicalVocabulary.id).subscribe());
         scheduler.flush();
 
         expect((service as any).vocabularyEntryDetailDataService.findByHref).toHaveBeenCalledWith(entryDetailParentRequestURL);
@@ -580,10 +582,20 @@ describe('VocabularyService', () => {
 
     describe('getEntryDetailChildren', () => {
       it('should proxy the call to vocabularyDataService.getEntryDetailChildren', () => {
-        scheduler.schedule(() => service.getEntryDetailChildren('testValue', hierarchicalVocabulary.id, new PageInfo()));
+        const options: VocabularyFindOptions = new VocabularyFindOptions(
+          null,
+          null,
+          null,
+          null,
+          null,
+          null,
+          pageInfo.elementsPerPage,
+          pageInfo.currentPage
+        );
+        scheduler.schedule(() => service.getEntryDetailChildren('testValue', hierarchicalVocabulary.id, pageInfo).subscribe());
         scheduler.flush();
 
-        expect((service as any).vocabularyEntryDetailDataService.findAllByHref).toHaveBeenCalledWith(entryDetailChildrenRequestURL);
+        expect((service as any).vocabularyEntryDetailDataService.findAllByHref).toHaveBeenCalledWith(entryDetailChildrenRequestURL, options);
       });
 
       it('should return a RemoteData<PaginatedList<ResourcePolicy>> for the object with the given URL', () => {
@@ -595,9 +607,19 @@ describe('VocabularyService', () => {
       });
     });
 
+
     describe('searchByTop', () => {
       it('should proxy the call to vocabularyEntryDetailDataService.searchBy', () => {
-        const options = new FindListOptions();
+        const options: VocabularyFindOptions = new VocabularyFindOptions(
+          null,
+          null,
+          null,
+          null,
+          null,
+          null,
+          pageInfo.elementsPerPage,
+          pageInfo.currentPage
+        );
         options.searchParams = [new RequestParam('vocabulary', 'srsc')];
         scheduler.schedule(() => service.searchTopEntries('srsc', pageInfo));
         scheduler.flush();
@@ -615,5 +637,14 @@ describe('VocabularyService', () => {
 
     });
 
+    describe('clearSearchTopRequests', () => {
+      it('should remove requests on the data service\'s endpoint', (done) => {
+        service.clearSearchTopRequests();
+
+        expect(requestService.removeByHrefSubstring).toHaveBeenCalledWith(`search/${(service as any).searchTopMethod}`);
+        done();
+      });
+    });
+
   });
 });
diff --git a/src/app/core/submission/vocabularies/vocabulary.service.ts b/src/app/core/submission/vocabularies/vocabulary.service.ts
index a7cf1e1d9e..1dac3b56a6 100644
--- a/src/app/core/submission/vocabularies/vocabulary.service.ts
+++ b/src/app/core/submission/vocabularies/vocabulary.service.ts
@@ -353,10 +353,26 @@ export class VocabularyService {
    * @param linksToFollow  List of {@link FollowLinkConfig} that indicate which {@link HALLink}s should be automatically resolved
    */
   searchTopEntries(name: string, pageInfo: PageInfo, ...linksToFollow: Array<FollowLinkConfig<VocabularyEntryDetail>>): Observable<RemoteData<PaginatedList<VocabularyEntryDetail>>> {
-    const options = new FindListOptions();
+    const options: VocabularyFindOptions = new VocabularyFindOptions(
+      null,
+      null,
+      null,
+      null,
+      null,
+      null,
+      pageInfo.elementsPerPage,
+      pageInfo.currentPage
+    );
     options.searchParams = [new RequestParam('vocabulary', name)];
     return this.vocabularyEntryDetailDataService.searchBy(this.searchTopMethod, options, ...linksToFollow)
   }
+
+  /**
+   * Clear all search Top Requests
+   */
+  clearSearchTopRequests(): void {
+    this.requestService.removeByHrefSubstring(`search/${this.searchTopMethod}`);
+  }
 }
 
 /**
diff --git a/src/app/shared/form/builder/ds-dynamic-form-ui/models/dynamic-vocabulary.component.ts b/src/app/shared/form/builder/ds-dynamic-form-ui/models/dynamic-vocabulary.component.ts
index 92cf623447..14ae2128b5 100644
--- a/src/app/shared/form/builder/ds-dynamic-form-ui/models/dynamic-vocabulary.component.ts
+++ b/src/app/shared/form/builder/ds-dynamic-form-ui/models/dynamic-vocabulary.component.ts
@@ -59,12 +59,13 @@ export abstract class DsDynamicVocabularyComponent extends DynamicFormControlCom
       }
       initValue$ = initEntry$.pipe(map((initEntry: VocabularyEntry) => {
         if (isNotEmpty(initEntry)) {
-          return new FormFieldMetadataValueObject(
-            initEntry.value,
-            null,
-            initEntry.authority,
-            initEntry.display
-          );
+          // Integrate FormFieldMetadataValueObject with retrieved information
+          return Object.assign(new FormFieldMetadataValueObject(), this.model.value, {
+              value: initEntry.value,
+              authority: initEntry.authority,
+              display: initEntry.display,
+              otherInformation: initEntry.otherInformation
+          });
         } else {
           return this.model.value as any;
         }
diff --git a/src/app/shared/form/builder/ds-dynamic-form-ui/models/typeahead/dynamic-typeahead.component.spec.ts b/src/app/shared/form/builder/ds-dynamic-form-ui/models/typeahead/dynamic-typeahead.component.spec.ts
index b827cd3536..72fc7fcba0 100644
--- a/src/app/shared/form/builder/ds-dynamic-form-ui/models/typeahead/dynamic-typeahead.component.spec.ts
+++ b/src/app/shared/form/builder/ds-dynamic-form-ui/models/typeahead/dynamic-typeahead.component.spec.ts
@@ -20,6 +20,7 @@ import { createTestComponent } from '../../../../../testing/utils.test';
 import { AuthorityConfidenceStateDirective } from '../../../../../authority-confidence/authority-confidence-state.directive';
 import { ObjNgFor } from '../../../../../utils/object-ngfor.pipe';
 import { VocabularyEntry } from '../../../../../../core/submission/vocabularies/models/vocabulary-entry.model';
+import { createSuccessfulRemoteDataObject$ } from '../../../../../remote-data.utils';
 
 export let TYPEAHEAD_TEST_GROUP;
 
@@ -34,7 +35,7 @@ function init() {
     vocabularyOptions: {
       closed: false,
       metadata: 'typeahead',
-      name: 'EVENTAuthority',
+      name: 'vocabulary',
       scope: 'c1c16450-d56f-41bc-bb81-27f1d1eb5c23'
     } as VocabularyOptions,
     disabled: false,
@@ -50,13 +51,47 @@ function init() {
   };
 }
 
-describe('DsDynamicTypeaheadComponent test suite', () => {
+fdescribe('DsDynamicTypeaheadComponent test suite', () => {
 
   let testComp: TestComponent;
   let typeaheadComp: DsDynamicTypeaheadComponent;
   let testFixture: ComponentFixture<TestComponent>;
   let typeaheadFixture: ComponentFixture<DsDynamicTypeaheadComponent>;
+  let service: any;
   let html;
+  let vocabulary = {
+    id: 'vocabulary',
+    name: 'vocabulary',
+    scrollable: true,
+    hierarchical: false,
+    preloadLevel: 0,
+    type: 'vocabulary',
+    _links: {
+      self: {
+        url: 'self'
+      },
+      entries: {
+        url: 'entries'
+      }
+    }
+  }
+
+  let hierarchicalVocabulary = {
+    id: 'hierarchicalVocabulary',
+    name: 'hierarchicalVocabulary',
+    scrollable: true,
+    hierarchical: true,
+    preloadLevel: 2,
+    type: 'vocabulary',
+    _links: {
+      self: {
+        url: 'self'
+      },
+      entries: {
+        url: 'entries'
+      }
+    }
+  }
 
   // async beforeEach
   beforeEach(async(() => {
@@ -113,7 +148,7 @@ describe('DsDynamicTypeaheadComponent test suite', () => {
     }));
   });
 
-  describe('', () => {
+  describe('not hiearchical', () => {
     describe('when init model value is empty', () => {
       beforeEach(() => {
 
@@ -121,6 +156,8 @@ describe('DsDynamicTypeaheadComponent test suite', () => {
         typeaheadComp = typeaheadFixture.componentInstance; // FormComponent test instance
         typeaheadComp.group = TYPEAHEAD_TEST_GROUP;
         typeaheadComp.model = new DynamicTypeaheadModel(TYPEAHEAD_TEST_MODEL_CONFIG);
+        service = (typeaheadComp as any).vocabularyService;
+        spyOn(service, 'findVocabularyById').and.returnValue(createSuccessfulRemoteDataObject$(vocabulary));
         typeaheadFixture.detectChanges();
       });
 
diff --git a/src/app/shared/form/builder/ds-dynamic-form-ui/models/typeahead/dynamic-typeahead.component.ts b/src/app/shared/form/builder/ds-dynamic-form-ui/models/typeahead/dynamic-typeahead.component.ts
index dd4da48849..93e5b228e7 100644
--- a/src/app/shared/form/builder/ds-dynamic-form-ui/models/typeahead/dynamic-typeahead.component.ts
+++ b/src/app/shared/form/builder/ds-dynamic-form-ui/models/typeahead/dynamic-typeahead.component.ts
@@ -119,7 +119,8 @@ export class DsDynamicTypeaheadComponent extends DsDynamicVocabularyComponent im
     }
 
     this.vocabulary$ = this.vocabularyService.findVocabularyById(this.model.vocabularyOptions.name).pipe(
-      getFirstSucceededRemoteDataPayload()
+      getFirstSucceededRemoteDataPayload(),
+      distinctUntilChanged()
     );
 
     this.group.get(this.model.id).valueChanges.pipe(
diff --git a/src/app/shared/form/builder/models/form-field-metadata-value.model.ts b/src/app/shared/form/builder/models/form-field-metadata-value.model.ts
index ff0afe97fd..15dbdbe8d9 100644
--- a/src/app/shared/form/builder/models/form-field-metadata-value.model.ts
+++ b/src/app/shared/form/builder/models/form-field-metadata-value.model.ts
@@ -11,6 +11,7 @@ export interface OtherInformation {
  * A class representing a specific input-form field's value
  */
 export class FormFieldMetadataValueObject implements MetadataValueInterface {
+  metadata?: string;
   value: any;
   display: string;
   language: any;
@@ -43,6 +44,9 @@ export class FormFieldMetadataValueObject implements MetadataValueInterface {
     }
 
     this.place = place;
+    if (isNotEmpty(metadata)) {
+      this.metadata = metadata;
+    }
 
     this.otherInformation = otherInformation;
   }
diff --git a/src/app/shared/form/builder/parsers/field-parser.ts b/src/app/shared/form/builder/parsers/field-parser.ts
index 540c9c7b4e..c03b366158 100644
--- a/src/app/shared/form/builder/parsers/field-parser.ts
+++ b/src/app/shared/form/builder/parsers/field-parser.ts
@@ -182,8 +182,8 @@ export abstract class FieldParser {
       fieldIds.forEach((id) => {
         if (this.initFormValues.hasOwnProperty(id)) {
           const valueObj: FormFieldMetadataValueObject = Object.assign(new FormFieldMetadataValueObject(), this.initFormValues[id][innerIndex]);
-          // valueObj.metadata = id;
-          // valueObj.value = this.initFormValues[id][innerIndex];
+          // Set metadata name, used for Qualdrop fields
+          valueObj.metadata = id;
           values.push(valueObj);
         }
       });
diff --git a/src/app/shared/testing/vocabulary-service.stub.ts b/src/app/shared/testing/vocabulary-service.stub.ts
index 0639294dc4..425281581a 100644
--- a/src/app/shared/testing/vocabulary-service.stub.ts
+++ b/src/app/shared/testing/vocabulary-service.stub.ts
@@ -6,6 +6,7 @@ import { PaginatedList } from '../../core/data/paginated-list';
 import { createSuccessfulRemoteDataObject$ } from '../remote-data.utils';
 import { RemoteData } from '../../core/data/remote-data';
 import { VocabularyOptions } from '../../core/submission/vocabularies/models/vocabulary-options.model';
+import { Vocabulary } from '../../core/submission/vocabularies/models/vocabulary.model';
 
 export class VocabularyServiceStub {
 
@@ -37,4 +38,8 @@ export class VocabularyServiceStub {
   getVocabularyEntryByID(id: string, vocabularyOptions: VocabularyOptions): Observable<VocabularyEntry> {
     return observableOf(Object.assign(new VocabularyEntry(), { authority: 1, display: 'one', value: 1 }));
   }
+
+  findVocabularyById(id: string): Observable<RemoteData<Vocabulary>> {
+    return;
+  }
 }
diff --git a/src/app/shared/vocabulary-treeview/vocabulary-treeview.component.html b/src/app/shared/vocabulary-treeview/vocabulary-treeview.component.html
index 9084013c4f..3f57e6a4c3 100644
--- a/src/app/shared/vocabulary-treeview/vocabulary-treeview.component.html
+++ b/src/app/shared/vocabulary-treeview/vocabulary-treeview.component.html
@@ -1,5 +1,5 @@
 <div class="modal-header">
-  <h4 class="modal-title">{{'treeview.header' | translate}}</h4>
+  <h4 class="modal-title">{{'vocabulary-treeview.header' | translate}}</h4>
   <button type="button" class="close" aria-label="Close" (click)="activeModal.dismiss('Cross click')">
     <span aria-hidden="true">&times;</span>
   </button>
@@ -13,19 +13,19 @@
           <input type="text" class="form-control" [(ngModel)]="searchText" (keyup.enter)="search()">
           <div class="input-group-append" id="button-addon4">
             <button class="btn btn-outline-primary" type="button" (click)="search()" [disabled]="!isSearchEnabled()">
-              {{'treeview.search.form.search' | translate}}
+              {{'vocabulary-treeview.search.form.search' | translate}}
             </button>
             <button class="btn btn-outline-secondary" type="button" (click)="reset()">
-              {{'treeview.search.form.reset' | translate}}
+              {{'vocabulary-treeview.search.form.reset' | translate}}
             </button>
           </div>
         </div>
       </div>
     </div>
     <div class="treeview-container">
-      <ds-loading *ngIf="searching | async" [showMessage]="false"></ds-loading>
-      <h4 *ngIf="!(searching | async) && dataSource.data.length === 0" class="text-center text-muted mt-4" >
-        <span>{{'treeview.search.no-result' | translate}}</span>
+      <ds-loading *ngIf="loading | async" [showMessage]="false"></ds-loading>
+      <h4 *ngIf="!(loading | async) && dataSource.data.length === 0" class="text-center text-muted mt-4" >
+        <span>{{'vocabulary-treeview.search.no-result' | translate}}</span>
       </h4>
       <cdk-tree [dataSource]="dataSource" [treeControl]="treeControl">
         <!-- Leaf node -->
@@ -62,13 +62,13 @@
 
         <cdk-tree-node *cdkTreeNodeDef="let node; when: isLoadMore" cdkTreeNodePadding>
           <button class="btn btn-outline-secondary btn-sm" (click)="loadMore(node.loadMoreParentItem)">
-            {{'treeview.load-more' | translate}}...
+            {{'vocabulary-treeview.load-more' | translate}}...
           </button>
         </cdk-tree-node>
 
         <cdk-tree-node *cdkTreeNodeDef="let node; when: isLoadMoreRoot">
           <button class="btn btn-outline-secondary btn-sm" (click)="loadMoreRoot(node)">
-            {{'treeview.load-more' | translate}}...
+            {{'vocabulary-treeview.load-more' | translate}}...
           </button>
         </cdk-tree-node>
       </cdk-tree>
diff --git a/src/app/shared/vocabulary-treeview/vocabulary-treeview.component.spec.ts b/src/app/shared/vocabulary-treeview/vocabulary-treeview.component.spec.ts
index 39f4274280..9af00b6be7 100644
--- a/src/app/shared/vocabulary-treeview/vocabulary-treeview.component.spec.ts
+++ b/src/app/shared/vocabulary-treeview/vocabulary-treeview.component.spec.ts
@@ -16,6 +16,7 @@ import { TreeviewFlatNode } from './vocabulary-treeview-node.model';
 import { FormFieldMetadataValueObject } from '../form/builder/models/form-field-metadata-value.model';
 import { VocabularyOptions } from '../../core/submission/vocabularies/models/vocabulary-options.model';
 import { PageInfo } from '../../core/shared/page-info.model';
+import { VocabularyEntry } from '../../core/submission/vocabularies/models/vocabulary-entry.model';
 
 describe('VocabularyTreeviewComponent test suite', () => {
 
@@ -37,7 +38,7 @@ describe('VocabularyTreeviewComponent test suite', () => {
     getData: jasmine.createSpy('getData'),
     loadMore: jasmine.createSpy('loadMore'),
     loadMoreRoot: jasmine.createSpy('loadMoreRoot'),
-    isSearching: jasmine.createSpy('isSearching'),
+    isLoading: jasmine.createSpy('isLoading'),
     searchByQuery: jasmine.createSpy('searchByQuery'),
     restoreNodes: jasmine.createSpy('restoreNodes'),
     cleanTree: jasmine.createSpy('cleanTree'),
@@ -100,7 +101,7 @@ describe('VocabularyTreeviewComponent test suite', () => {
       comp = fixture.componentInstance;
       compAsAny = comp;
       vocabularyTreeviewServiceStub.getData.and.returnValue(observableOf([]));
-      vocabularyTreeviewServiceStub.isSearching.and.returnValue(observableOf(false));
+      vocabularyTreeviewServiceStub.isLoading.and.returnValue(observableOf(false));
       comp.vocabularyOptions = vocabularyOptions;
       comp.selectedItem = null;
     });
@@ -118,19 +119,27 @@ describe('VocabularyTreeviewComponent test suite', () => {
     });
 
     it('should should init component properly with init value as FormFieldMetadataValueObject', () => {
-      comp.selectedItem = new FormFieldMetadataValueObject('test', null, 'auth001');
+      const currentValue = new FormFieldMetadataValueObject();
+      currentValue.value = 'testValue';
+      currentValue.otherInformation = {
+        id: 'entryID'
+      };
+      comp.selectedItem = currentValue;
       fixture.detectChanges();
       expect(comp.dataSource.data).toEqual([]);
-      expect(vocabularyTreeviewServiceStub.initialize).toHaveBeenCalledWith(comp.vocabularyOptions, new PageInfo(), 'auth001');
+      expect(vocabularyTreeviewServiceStub.initialize).toHaveBeenCalledWith(comp.vocabularyOptions, new PageInfo(), 'entryID');
     });
 
-    it('should should init component properly with init value as AuthorityEntry', () => {
-      const authority = new VocabularyEntryDetail();
-      authority.id = 'auth001';
-      comp.selectedItem = authority;
+    it('should should init component properly with init value as VocabularyEntry', () => {
+      const currentValue = new VocabularyEntry();
+      currentValue.value = 'testValue';
+      currentValue.otherInformation = {
+        id: 'entryID'
+      };
+      comp.selectedItem = currentValue;
       fixture.detectChanges();
       expect(comp.dataSource.data).toEqual([]);
-      expect(vocabularyTreeviewServiceStub.initialize).toHaveBeenCalledWith(comp.vocabularyOptions, new PageInfo(), 'auth001');
+      expect(vocabularyTreeviewServiceStub.initialize).toHaveBeenCalledWith(comp.vocabularyOptions, new PageInfo(), 'entryID');
     });
 
     it('should call loadMore function', () => {
diff --git a/src/app/shared/vocabulary-treeview/vocabulary-treeview.component.ts b/src/app/shared/vocabulary-treeview/vocabulary-treeview.component.ts
index 34c9a52c60..8c7543849d 100644
--- a/src/app/shared/vocabulary-treeview/vocabulary-treeview.component.ts
+++ b/src/app/shared/vocabulary-treeview/vocabulary-treeview.component.ts
@@ -16,6 +16,7 @@ import { VocabularyTreeviewService } from './vocabulary-treeview.service';
 import { LOAD_MORE, LOAD_MORE_ROOT, TreeviewFlatNode, TreeviewNode } from './vocabulary-treeview-node.model';
 import { VocabularyOptions } from '../../core/submission/vocabularies/models/vocabulary-options.model';
 import { PageInfo } from '../../core/shared/page-info.model';
+import { VocabularyEntry } from '../../core/submission/vocabularies/models/vocabulary-entry.model';
 
 /**
  * Component that show a hierarchical vocabulary in a tree view
@@ -78,9 +79,9 @@ export class VocabularyTreeviewComponent implements OnDestroy, OnInit {
   searchText: string;
 
   /**
-   * A boolean representing if a search operation is pending
+   * A boolean representing if tree is loading
    */
-  searching: Observable<boolean>;
+  loading: Observable<boolean>;
 
   /**
    * An event fired when a vocabulary entry is selected.
@@ -198,7 +199,7 @@ export class VocabularyTreeviewComponent implements OnDestroy, OnInit {
       })
     );
 
-    const descriptionLabel = 'tree.description.' + this.vocabularyOptions.name;
+    const descriptionLabel = 'vocabulary-treeview.tree.description.' + this.vocabularyOptions.name;
     this.description = this.translate.get(descriptionLabel).pipe(
       filter((msg) => msg !== descriptionLabel),
       startWith('')
@@ -207,13 +208,13 @@ export class VocabularyTreeviewComponent implements OnDestroy, OnInit {
     // set isAuthenticated
     this.isAuthenticated = this.store.pipe(select(isAuthenticated));
 
-    this.searching = this.vocabularyTreeviewService.isSearching();
+    this.loading = this.vocabularyTreeviewService.isLoading();
 
     this.isAuthenticated.pipe(
       find((isAuth) => isAuth)
     ).subscribe(() => {
-      const valueId: string = (this.selectedItem) ? (this.selectedItem.authority || this.selectedItem.id) : null;
-      this.vocabularyTreeviewService.initialize(this.vocabularyOptions, new PageInfo(), valueId);
+      const entryId: string = (this.selectedItem) ? this.getEntryId(this.selectedItem) : null;
+      this.vocabularyTreeviewService.initialize(this.vocabularyOptions, new PageInfo(), entryId);
     });
   }
 
@@ -292,4 +293,11 @@ export class VocabularyTreeviewComponent implements OnDestroy, OnInit {
       .filter((sub) => hasValue(sub))
       .forEach((sub) => sub.unsubscribe());
   }
+
+  /**
+   * Return an id for a given {@link VocabularyEntry}
+   */
+  private getEntryId(entry: VocabularyEntry): string {
+    return entry.authority || entry.otherInformation.id || undefined;
+  }
 }
diff --git a/src/app/shared/vocabulary-treeview/vocabulary-treeview.service.spec.ts b/src/app/shared/vocabulary-treeview/vocabulary-treeview.service.spec.ts
index 32ef635792..2f03549898 100644
--- a/src/app/shared/vocabulary-treeview/vocabulary-treeview.service.spec.ts
+++ b/src/app/shared/vocabulary-treeview/vocabulary-treeview.service.spec.ts
@@ -50,39 +50,47 @@ describe('VocabularyTreeviewService test suite', () => {
   let nodeMapWithChildren: Map<string, TreeviewNode>;
   let searchNodeMap: Map<string, TreeviewNode>;
   let vocabularyOptions;
+  let pageInfo: PageInfo;
 
   const vocabularyServiceStub = jasmine.createSpyObj('VocabularyService', {
     getVocabularyEntriesByValue: jasmine.createSpy('getVocabularyEntriesByValue'),
     getEntryDetailParent: jasmine.createSpy('getEntryDetailParent'),
     findEntryDetailByValue: jasmine.createSpy('findEntryDetailByValue'),
     searchTopEntries: jasmine.createSpy('searchTopEntries'),
-    getEntryDetailChildren: jasmine.createSpy('getEntryDetailChildren')
+    getEntryDetailChildren: jasmine.createSpy('getEntryDetailChildren'),
+    clearSearchTopRequests: jasmine.createSpy('clearSearchTopRequests')
   });
 
   function init() {
 
+    pageInfo = Object.assign(new PageInfo(), {
+      elementsPerPage: 1,
+      totalElements: 3,
+      totalPages: 1,
+      currentPage: 1
+    });
     loadMoreNode = new TreeviewNode(LOAD_MORE_NODE, false, new PageInfo(), item);
     loadMoreRootNode = new TreeviewNode(LOAD_MORE_ROOT_NODE, false, new PageInfo(), null);
     loadMoreRootFlatNode = new TreeviewFlatNode(LOAD_MORE_ROOT_NODE, 1, false, new PageInfo(), null);
     item = new VocabularyEntryDetail();
     item.id = item.value = item.display = 'root1';
-    item.otherInformation = { children: 'root1-child1::root1-child2', id: 'root1' };
-    itemNode = new TreeviewNode(item, true);
+    item.otherInformation = { hasChildren: 'true', id: 'root1' };
+    itemNode = new TreeviewNode(item, true, pageInfo);
     searchItemNode = new TreeviewNode(item, true, new PageInfo(), null, true);
 
     item2 = new VocabularyEntryDetail();
     item2.id = item2.value = item2.display = 'root2';
     item2.otherInformation = { id: 'root2' };
-    itemNode2 = new TreeviewNode(item2);
+    itemNode2 = new TreeviewNode(item2, false, pageInfo);
 
     item3 = new VocabularyEntryDetail();
     item3.id = item3.value = item3.display = 'root3';
     item3.otherInformation = { id: 'root3' };
-    itemNode3 = new TreeviewNode(item3);
+    itemNode3 = new TreeviewNode(item3, false, pageInfo);
 
     child = new VocabularyEntryDetail();
     child.id = child.value = child.display = 'root1-child1';
-    child.otherInformation = { parent: 'root1', children: 'root1-child1-child1', id: 'root1-child1' };
+    child.otherInformation = { parent: 'root1', hasChildren: 'true', id: 'root1-child1' };
     childNode = new TreeviewNode(child);
     searchChildNode = new TreeviewNode(child, true, new PageInfo(), item, true);
 
@@ -167,12 +175,6 @@ describe('VocabularyTreeviewService test suite', () => {
 
   describe('initialize', () => {
     it('should set vocabularyName and call retrieveTopNodes method', () => {
-      const pageInfo = Object.assign(new PageInfo(), {
-        elementsPerPage: 1,
-        totalElements: 3,
-        totalPages: 1,
-        currentPage: 1
-      });
       serviceAsAny.vocabularyService.searchTopEntries.and.returnValue(hot('-a', {
         a: createSuccessfulRemoteDataObject(new PaginatedList(pageInfo, [item, item2, item3]))
       }));
@@ -181,16 +183,12 @@ describe('VocabularyTreeviewService test suite', () => {
       scheduler.flush();
 
       expect(serviceAsAny.vocabularyName).toEqual(vocabularyOptions.name);
+      expect(serviceAsAny.pageInfo).toEqual(pageInfo);
+      console.log(serviceAsAny.dataChange.value[0].pageInfo, itemNode.pageInfo);
       expect(serviceAsAny.dataChange.value).toEqual([itemNode, itemNode2, itemNode3]);
     });
 
     it('should set initValueHierarchy', () => {
-      const pageInfo = Object.assign(new PageInfo(), {
-        elementsPerPage: 1,
-        totalElements: 3,
-        totalPages: 1,
-        currentPage: 1
-      });
       serviceAsAny.vocabularyService.searchTopEntries.and.returnValue(hot('-c', {
         a: createSuccessfulRemoteDataObject(new PaginatedList(pageInfo, [item, item2, item3]))
       }));
@@ -239,7 +237,7 @@ describe('VocabularyTreeviewService test suite', () => {
     });
 
     it('should add children nodes properly', () => {
-      const pageInfo = Object.assign(new PageInfo(), {
+      pageInfo = Object.assign(new PageInfo(), {
         elementsPerPage: 1,
         totalElements: 2,
         totalPages: 2,
@@ -260,7 +258,7 @@ describe('VocabularyTreeviewService test suite', () => {
     });
 
     it('should add loadMore node properly', () => {
-      const pageInfo = Object.assign(new PageInfo(), {
+      pageInfo = Object.assign(new PageInfo(), {
         elementsPerPage: 1,
         totalElements: 2,
         totalPages: 2,
@@ -285,7 +283,7 @@ describe('VocabularyTreeviewService test suite', () => {
 
   describe('searchByQuery', () => {
     it('should set tree data properly after a search', () => {
-      const pageInfo = Object.assign(new PageInfo(), {
+      pageInfo = Object.assign(new PageInfo(), {
         elementsPerPage: 1,
         totalElements: 1,
         totalPages: 1,
diff --git a/src/app/shared/vocabulary-treeview/vocabulary-treeview.service.ts b/src/app/shared/vocabulary-treeview/vocabulary-treeview.service.ts
index bfaddf414e..8beead5419 100644
--- a/src/app/shared/vocabulary-treeview/vocabulary-treeview.service.ts
+++ b/src/app/shared/vocabulary-treeview/vocabulary-treeview.service.ts
@@ -1,7 +1,7 @@
 import { Injectable } from '@angular/core';
 
 import { BehaviorSubject, Observable, of as observableOf } from 'rxjs';
-import { flatMap, map, merge, scan, take, tap } from 'rxjs/operators';
+import { flatMap, map, merge, scan } from 'rxjs/operators';
 import { findIndex } from 'lodash';
 
 import { LOAD_MORE_NODE, LOAD_MORE_ROOT_NODE, TreeviewFlatNode, TreeviewNode } from './vocabulary-treeview-node.model';
@@ -56,14 +56,18 @@ export class VocabularyTreeviewService {
   private initValueHierarchy: string[] = [];
 
   /**
-   * A boolean representing if a search operation is pending
+   * A boolean representing if any operation is pending
    */
-  private searching = new BehaviorSubject<boolean>(false);
+  private loading = new BehaviorSubject<boolean>(false);
 
   /**
-   * An observable to change the searching status
+   * The {@link PageInfo} object
    */
-  private hideSearchingWhenUnsubscribed$ = new Observable(() => () => this.searching.next(false));
+  private pageInfo: PageInfo;
+  /**
+   * An observable to change the loading status
+   */
+  private hideSearchingWhenUnsubscribed$ = new Observable(() => () => this.loading.next(false));
 
   /**
    * Initialize instance variables
@@ -92,8 +96,10 @@ export class VocabularyTreeviewService {
    * @param initValueId The entry id of the node to mark as selected, if any
    */
   initialize(options: VocabularyOptions, pageInfo: PageInfo, initValueId?: string): void {
+    this.loading.next(true);
     this.vocabularyOptions = options;
     this.vocabularyName = options.name;
+    this.pageInfo = pageInfo;
     if (isNotEmpty(initValueId)) {
       this.getNodeHierarchyById(initValueId)
         .subscribe((hierarchy: string[]) => {
@@ -160,17 +166,17 @@ export class VocabularyTreeviewService {
   }
 
   /**
-   * Check if a search operation is pending
+   * Check if any operation is pending
    */
-  isSearching(): Observable<boolean> {
-    return this.searching;
+  isLoading(): Observable<boolean> {
+    return this.loading;
   }
 
   /**
    * Perform a search operation by query
    */
   searchByQuery(query: string) {
-    this.searching.next(true);
+    this.loading.next(true);
     if (isEmpty(this.storedNodes)) {
       this.storedNodes = this.dataChange.value;
       this.storedNodeMap = this.nodeMap;
@@ -192,7 +198,7 @@ export class VocabularyTreeviewService {
       merge(this.hideSearchingWhenUnsubscribed$)
     ).subscribe((nodes: TreeviewNode[]) => {
       this.dataChange.next(nodes);
-      this.searching.next(false);
+      this.loading.next(false);
     })
   }
 
@@ -200,7 +206,7 @@ export class VocabularyTreeviewService {
    * Reset tree state with the one before the search
    */
   restoreNodes() {
-    this.searching.next(false);
+    this.loading.next(false);
     this.dataChange.next(this.storedNodes);
     this.nodeMap = this.storedNodeMap;
 
@@ -224,8 +230,8 @@ export class VocabularyTreeviewService {
     const entryDetail: VocabularyEntryDetail = Object.assign(new VocabularyEntryDetail(), entry, {
       id: entryId
     });
-    const hasChildren = entry.hasOtherInformation() && isNotEmpty((entry.otherInformation as any).children);
-    const pageInfo: PageInfo = new PageInfo();
+    const hasChildren = entry.hasOtherInformation() && (entry.otherInformation as any)!.hasChildren == 'true';
+    const pageInfo: PageInfo = this.pageInfo;
     const isInInitValueHierarchy = this.initValueHierarchy.includes(entryId);
     const result = new TreeviewNode(
       entryDetail,
@@ -295,8 +301,10 @@ export class VocabularyTreeviewService {
     this.vocabularyService.searchTopEntries(this.vocabularyName, pageInfo).pipe(
       getFirstSucceededRemoteDataPayload()
     ).subscribe((list: PaginatedList<VocabularyEntryDetail>) => {
-      const newNodes: TreeviewNode[] = list.page.map((entry: VocabularyEntryDetail) => this._generateNode(entry))
+      this.vocabularyService.clearSearchTopRequests();
+      const newNodes: TreeviewNode[] = list.page.map((entry: VocabularyEntryDetail) => this._generateNode(entry));
       nodes.push(...newNodes);
+
       if ((list.pageInfo.currentPage + 1) <= list.pageInfo.totalPages) {
         // Need a new load more node
         const newPageInfo: PageInfo = Object.assign(new PageInfo(), list.pageInfo, {
@@ -306,6 +314,7 @@ export class VocabularyTreeviewService {
         loadMoreNode.updatePageInfo(newPageInfo);
         nodes.push(loadMoreNode);
       }
+      this.loading.next(false);
       // Notify the change.
       this.dataChange.next(nodes);
     });
@@ -328,8 +337,7 @@ export class VocabularyTreeviewService {
     if (isNotEmpty(children)) {
       const newChildren = children
         .filter((entry: TreeviewNode) => {
-          const ii = findIndex(node.children, (nodeEntry) => nodeEntry.item.id === entry.item.id);
-          return ii === -1;
+          return findIndex(node.children, (nodeEntry) => nodeEntry.item.id === entry.item.id) === -1;
         });
       newChildren.forEach((entry: TreeviewNode) => {
         entry.loadMoreParentItem = node.item
diff --git a/src/assets/i18n/en.json5 b/src/assets/i18n/en.json5
index 3a79984ec3..26c4829e4c 100644
--- a/src/assets/i18n/en.json5
+++ b/src/assets/i18n/en.json5
@@ -2712,6 +2712,24 @@
   "title": "DSpace",
 
 
+
+
+  "vocabulary-treeview.header": "Hierarchical tree view",
+
+  "vocabulary-treeview.load-more": "Load more",
+
+  "vocabulary-treeview.search.form.reset": "Reset",
+
+  "vocabulary-treeview.search.form.search": "Search",
+
+  "vocabulary-treeview.search.no-result": "There were no items to show",
+
+  "vocabulary-treeview.tree.description.nsi": "The Norwegian Science Index",
+
+  "vocabulary-treeview.tree.description.srsc": "Research Subject Categories",
+
+
+
   "administrativeView.search.results.head": "Administrative Search",
 
   "menu.section.admin_search": "Admin Search",