Perhaps you should try some spelling variations:
"clean development agencies." » "clean development policies.", "clean government agencies.", "human development agencies.", "urban development agencies.", "child development agencies."
"a development process." » "a development projects.", "a development programs.", "a development policies.", "_ development process.", "asian development process.", "city development process."
"a development series." » "a development services.", "a development africa.", "a development strategies.", "_ development series.", "asian development series.", "city development series."

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