Perhaps you should try some spelling variations:
"a development services." » "a development agencies.", "a development process.", "a development africa.", "clean development services.", "asian development services.", "city development services."
"a development studies." » "a development series.", "a development strategies.", "a development strategy.", "clean development studies.", "asian development studies.", "city development studies."
"_ development studies." » "_ development series.", "_ development strategies.", "_ 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: (((("a development studies.") OR ("a development services."))) or ("_ development studies."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("a development studies.") OR ("a development services."))) OR ("_ development studies.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"a development studies.\") OR (\"a development services.\"))) or (\"_ development studies.\"))".
• Removing quotes may allow a broader search: (((( a development studies. ) OR ( a development services. ))) or ( _ development studies. )).
• Adding a wildcard symbol may retrieve word variants: (((("a development studies.") OR ("a development services."))) or ("_ development studies."))*.