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