Perhaps you should try some spelling variations:
"a development services." » "a development process."
"a development series." » "a development agencies.", "a development strategies.", "a development strategy."
"asian development series." » "asian development agencies.", "asian development strategies.", "asian development strategy.", "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: (("a development services.") or ((("a development series.") or ("asian development series."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("a development services.") OR ((("a development series.") OR ("asian development series.")))).
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• Adding a wildcard symbol may retrieve word variants: (("a development services.") or ((("a development series.") or ("asian development series."))))*.