Perhaps you should try some spelling variations:
learning resource » learning resources, teaching resource, teaching resources
learning research » teaching research, learning resources, emerging research
training resource » training resources, teaching resource, defining resource
resource survey » resources surveys, resource curse, resource security
wbi training » wbi learning, 3 training, 3.3 training

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

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