Perhaps you should try some spelling variations:
teaching resource » teaching resources, teacher resource, training resources
learning resource » learning research, teaching resources, training resources
resource survey » resource curse, resource strategy, resource studies
wbi teaching » _ teaching, wbi training
resources » sources

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

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