Perhaps you should try some spelling variations:
"city development studies." » "city development series.", "city development services.", "city development strategies.", "capacity development studies.", "policy development studies.", "community development studies."
"_ development studies." » "_ development series.", "_ development services.", "_ development strategies."
"asian development studies." » "asian development series.", "asian development services.", "asian development strategies.", "human development studies.", "urban development studies.", "clean development studies."

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("city development studies.") or ("_ development studies."))) or ("asian development studies."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("city development studies.") OR ("_ development studies."))) OR ("asian development studies.")).
• Removing quotes may allow a broader search: (((( city development studies. ) or ( _ development studies. ))) or ( asian development studies. )).
• Adding a wildcard symbol may retrieve word variants: (((("city development studies.") or ("_ development studies."))) or ("asian development studies."))*.