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