Perhaps you should try some spelling variations:
"_ development studies." » "_ development services.", "_ development strategies.", "_ development strategy."
"asian development series." » "asian development services.", "asian development agencies.", "asian development africa.", "urban development series.", "clean development series.", "capital development series."
"human development series." » "human development services.", "human development agencies.", "human development africa."

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

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