Perhaps you should try some spelling variations:
resource studies » research studies, resource issues, resource taxes
teacher resource » teaching resource, teaching resources, water resource
refugee studies » refugee students
resource survey » resource curse, resource strategy
wbi teaching » _ teaching, wbi training

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( wbi teaching ((resource studies) OR (refugee studies)). ) or ( wbi teacher resource survey. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( wbi teaching ((resource studies) OR (refugee studies)). ) OR ( wbi teacher resource survey. )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( wbi teaching ((resource studies) OR (refugee studies)). ) or ( wbi teacher resource survey. ))".
• Adding a wildcard symbol may retrieve word variants: (( wbi teaching ((resource studies) OR (refugee studies)). ) or ( wbi teacher resource survey. ))*.