Perhaps you should try some spelling variations:
"e development studies." » "e development services.", "e development strategies.", "e development strategy.", "_ development studies.", "sme development studies.", "mine development studies."
"a development studies." » "a development services.", "a development strategies.", "a development strategy.", "_ development studies.", "clean development studies.", "asian development studies."
"min_ development series." » "min_ development services.", "min_ development agencies.", "min_ development africa.", "mine development series.", "mining development series.", "china development series."

Try widening your search to All Fields.

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