Perhaps you should try some spelling variations:
"a development strategies." » "a development strategy.", "_ development strategies.", "clean development strategies.", "asian development strategies."
"a development series." » "a development services.", "a development agencies.", "a development strategy.", "_ development series.", "clean development series.", "asian development series."
"a development africa." » "_ development africa.", "clean development africa.", "asian development africa."

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("a development strategies.") or ((("a development series.") or ("a development africa."))))~.
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• Adding a wildcard symbol may retrieve word variants: (("a development strategies.") or ((("a development series.") or ("a development africa."))))*.