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 services.", "a development strategy.", "a development policies.", "_ development studies.", "asian development studies.", "city development studies."
"clean development series." » "clean development services.", "clean development agencies.", "clean development africa.", "human development series.", "urban development series.", "child development series."

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