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