Approval in backend

backend/ar/basis.json

@@ -367,6 +367,11 @@
         "number": "Number",
         "fulltext": "Fulltext",
         "add_search_param": "Add a search parameter",
-        "current_search_query": "Current search query"
+        "current_search_query": "Current search query",
+        "contains": "Contains",
+        "equals": "Equals",
+        "is_empty": "Is empty",
+        "equal": "Equal",
+        "contain": "Contain"
     }
 }