Perhaps you should try some spelling variations:
development comparison » development competition, development companies, development compensation
future development » estate development, resource development, software development
development gender » development center, development under, development centers
comparison problem » comparison program, comparison programs, composition problem
model development » local development, social development, global development
1e model » fe model, 5e model, cge model

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( 4 future development gender program. ) or ( 1e model development comparison problem. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( 4 future development gender program. ) OR ( 1e model development comparison problem. )).
• Adding a wildcard symbol may retrieve word variants: (( 4 future development gender program. ) or ( 1e model development comparison problem. ))*.