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

Try widening your search to All Fields.

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