Perhaps you should try some spelling variations:
"_ development studies." » "_ development series.", "_ development services.", "_ development strategies."
"sme development policy." » "asian development policy.", "trade development policy.", "based development policy."
"a development projects." » "clean development projects.", "asian development projects.", "city development projects."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("a development projects.") or ("sme development policy."))) or ("_ development studies."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("a development projects.") OR ("sme development policy."))) OR ("_ development studies."))*.
• Removing quotes may allow a broader search: (((( a development projects. ) or ( sme development policy. ))) or ( _ development studies. ))*.