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

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• Performing a fuzzy search may retrieve terms with similar spellings: (("a development studies.") or ((("a development agencies.") or ("clean development services."))))~.
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• Adding a wildcard symbol may retrieve word variants: (("a development studies.") or ((("a development agencies.") or ("clean development services."))))*.