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