Perhaps you should try some spelling variations:
"clean development agencies." » "clean development policies.", "human development agencies.", "urban development agencies."
"e development studies." » "e development services.", "e development strategies.", "e development strategy.", "sme development studies.", "mine development studies.", "site development studies."
"a development series." » "a development services.", "a development strategies.", "a development strategy."

Try widening your search to All Fields.

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

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