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

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: (((("a development services.") OR ("a development agencies."))) or ("asian development studies."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("a development services.") OR ("a development agencies."))) OR ("asian development studies.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"a development services.\") OR (\"a development agencies.\"))) or (\"asian development studies.\"))".
• Removing quotes may allow a broader search: (((( a development services. ) OR ( a development agencies. ))) or ( asian development studies. )).
• Adding a wildcard symbol may retrieve word variants: (((("a development services.") OR ("a development agencies."))) or ("asian development studies."))*.