Perhaps you should try some spelling variations:
"a development studies." » "a development services.", "a development strategies.", "a development strategy.", "_ development studies.", "asian development studies.", "city development studies."
"clean development series." » "clean development services.", "clean development agencies.", "clean development strategies.", "human development series.", "urban development series.", "child development series."
"a development africa." » "_ development africa.", "asian development africa.", "city 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: (((("a development studies.") or ("clean development series."))) or ("a development africa."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("a development studies.") OR ("clean development series."))) OR ("a development africa.")).
• Removing quotes may allow a broader search: (((( a development studies. ) or ( clean development series. ))) or ( a development africa. )).
• Adding a wildcard symbol may retrieve word variants: (((("a development studies.") or ("clean development series."))) or ("a development africa."))*.