Perhaps you should try some spelling variations:
"a development research" » "a development report", "_ development research", "asian development research", "city development research"
"a development reports" » "a development report", "a development efforts", "a development results", "_ development reports", "asian development reports", "city development reports"
"clean development reports" » "clean development report", "clean development efforts", "clean development results", "human development reports", "urban development reports", "child development reports"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("a development reports") or ("clean development reports"))) or ("a development research"))~.
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• Removing quotes may allow a broader search: (((( a development reports ) or ( clean development reports ))) or ( a development research )).
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