Fix front-end search if multiple "any" terms are given

Previous implementation was flawed that if multiple any terms
were given, every term had to be true inside one field. If couldn't
handle the case when the terms can be found in different fields.

Now any terms are evaluated separately and not bound together.

Fix #1844

h/static/scripts/services.coffee

@@ -531,7 +531,9 @@ class ViewFilter
           when 'any'
             categoryMatch = false
             for field in @checkers.any.fields
-              if @_checkMatch(filter, annotation, @checkers[field])
+              for term in filter.terms
+                termFilter = {terms: [term], operator: "and"}
+                if @_checkMatch(termFilter, annotation, @checkers[field])
                   categoryMatch = true
                   break
             match = categoryMatch