Perhaps you should try some spelling variations:
"_ development strategies." » "_ development strategy."
"clean development studies." » "clean development services.", "clean development strategy.", "clean development policies.", "human development studies.", "urban development studies.", "child development studies."
"a development series." » "a development services.", "a development agencies.", "a development africa.", "asian development series.", "city 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: (((("_ development strategies.") or ("a development series."))) or ("clean development studies."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("_ development strategies.") OR ("a development series."))) OR ("clean development studies.")).
• Removing quotes may allow a broader search: (((( _ development strategies. ) or ( a development series. ))) or ( clean development studies. )).
• Adding a wildcard symbol may retrieve word variants: (((("_ development strategies.") or ("a development series."))) or ("clean development studies."))*.