Perhaps you should try some spelling variations:
learning resource » learning resources, learning research, teaching resource
teacher resource » teaching resource, teaching resources, teacher researcher
resource series » resources series, resource theories, resource studies
resource survey » resources surveys, resource curse, resource security
wbi teacher » smi teacher, asia teacher

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 series. ) or ( wbi teacher resource survey. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( a learning resource series. ) OR ( wbi teacher resource survey. )).
• Adding a wildcard symbol may retrieve word variants: (( a learning resource series. ) or ( wbi teacher resource survey. ))*.