Perhaps you should try some spelling variations:
learning resource » learning resources, learning research, teaching resources
resource agencies » resource centres, resource policies, resource theories
training resource » training resources, defining resource, drinking resource
teaching resource » teaching resources, teaching research, teacher resource

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

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