Perhaps you should try some spelling variations:
development agencies » development policies
smclean development » clean developoment, ocean development, plan development
development studies » development series, development services, development strategies
clean development » human development, urban development

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

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