Perhaps you should try some spelling variations:
learning research » teaching research, learning resources, emerging research
research studies » research series
learning curves » learning curve, learning centers, learning centres
curves series » surveys series, survey series, sources series
new learning » 2 learning, 3 learning, 4 learning

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( new learning research studies. ) or ( a learning curves series. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( new learning research studies. ) OR ( a learning curves series. )).
• Adding a wildcard symbol may retrieve word variants: (( new learning research studies. ) or ( a learning curves series. ))*.