Perhaps you should try some spelling variations:
"_ development studies." » "_ development services.", "_ development strategies.", "_ development strategy."
"e development series." » "e development services.", "e development agencies.", "e development strategies.", "sme development series.", "mine development series.", "site development series."
"city development series." » "city development services.", "city development agencies.", "city development strategies.", "capacity development series.", "policy development series.", "community development series."

Try widening your search to All Fields.

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