diff --git a/searchPages/searchUtils/searchPage.component.ts b/searchPages/searchUtils/searchPage.component.ts
index 05c4645f..47e34f8a 100644
--- a/searchPages/searchUtils/searchPage.component.ts
+++ b/searchPages/searchUtils/searchPage.component.ts
@@ -185,11 +185,13 @@ export class SearchPageComponent {
              let values = (StringUtils.URIDecode(this.queryParameters.get(filterId))).split(/,(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)/,-1);
              var countvalues = 0;
              var fq = "";
+             let filterOp: string = this.searchFieldsHelper.getFieldOperator(filterId);
+             console.info(filterId, filterOp);
              for(let value of values) {
                countvalues++;
                var paramId = this.fieldIdsMap[filterId].param;
               // parameters+='&' + paramId+ '='+ value;//+"&" + this.fieldIdsMap[paramId].operator + "="+((countvalues == 1)?"and":"or");
-              fq+=(fq.length > 0 ? " " + "or" + " ":"" ) + filterId +" exact " +(value);
+              fq+=(fq.length > 0 ? " " + filterOp  + " ":"" ) + filterId +" exact " +(value);
              }
              if(countvalues > 0){
                fq="&fq="+StringUtils.URIEncode(fq);
@@ -247,11 +249,13 @@ export class SearchPageComponent {
          if(params[filterId] != undefined) {
             this.queryParameters.set(filterId,decodeURIComponent(params[filterId]));
             let values = (decodeURIComponent(this.queryParameters.get(filterId))).split(/,(?=(?:[^\"]*\"[^\"]*\")*[^\"]*$)/,-1);
-            var countvalues = 0
+            var countvalues = 0;
+            let filterOp: string = this.searchFieldsHelper.getFieldOperator(filterId);
+            console.info(filterId, filterOp);
             for(let value of values) {
               countvalues++;
               // parameters+= ((countvalues == 1)?" and (":" or ")+ filterId+ '='+ value;
-              fq+=(fq.length > 0 ? " " + "or" + " ":"" ) + filterId + " exact " + value;//StringUtils.quote(value);
+              fq+=(fq.length > 0 ? " " + filterOp + " ":"" ) + filterId + " exact " + value;//StringUtils.quote(value);
             }
             // parameters+= " ) ";
             if(countvalues > 0){
diff --git a/services/servicesUtils/refineResults.class.ts b/services/servicesUtils/refineResults.class.ts
index 6068e522..01999671 100644
--- a/services/servicesUtils/refineResults.class.ts
+++ b/services/servicesUtils/refineResults.class.ts
@@ -19,6 +19,7 @@ export class RefineResultsUtils {
              filter.filterId = fields[j];
              filter.originalFilterId = fields[j];
              filter.valueIsUnique = searchFields.fieldHasUniqueValue(fields[j], entityType, usedBy);
+             filter.filterOperator = searchFields.getFieldOperator(fields[j]);
              //console.info("filter.title: "+filter.title+" filter.valueIsUnique: "+filter.valueIsUnique);
 
              let field = data[fields[j]];
diff --git a/utils/properties/searchFields.ts b/utils/properties/searchFields.ts
index 474f9298..6802fceb 100644
--- a/utils/properties/searchFields.ts
+++ b/utils/properties/searchFields.ts
@@ -189,6 +189,46 @@ export class SearchFields {
         return false;
       }
     }
+
+/*
+AND
+  Funder: relfunder, relfundinglevel0_id, relfundinglevel1_id, relfundinglevel2_id
+  Project: relproject
+  Community: community
+OR
+  Type: instancetypename, datasourcetypeuiname
+  Language: resultlanguagename, datasourceodlanguages
+  Compatibility Level: datasourcecompatibilityname
+  Country: country
+  Content: datasourceodcontenttypes
+  Content Provider: resulthostingdatasource
+  Collected From: collectedfrom
+BULLETS
+  Access Mode: resultbestaccessright
+  Special Clause 39: projectecsc39
+  Versioning:
+
+RANGE
+  Publication date: resultacceptanceyear
+  Project life: projectstartyear, projectendyear
+
+? WHAT ABOUT ?:
+  Subjects:
+  Supported Identifiers:
+*/
+
+  getFieldOperator(fieldId:string):string{
+     if(fieldId == "relfunder" || fieldId == "relfundinglevel0_id" || fieldId == "relfundinglevel1_id" || fieldId == "relfundinglevel2_id"
+       || fieldId == "relproject" || fieldId == "community") {
+       return "and";
+     } else if(fieldId == "instancetypename" || fieldId == "datasourcetypeuiname"
+       || fieldId == "resultlanguagename" || fieldId == "datasourceodlanguages"
+       || fieldId == "datasourcecompatibilityname" || fieldId == "country" || fieldId == "datasourceodcontenttypes"
+       || fieldId == "resulthostingdatasource" || fieldId == "collectedfrom") {
+       return "or";
+     }
+     return "or";
+  }
 }
 export class FieldDetails{
    name:string;