Perhaps you should try some spelling variations:
"e development strategies." » "e development strategy.", "_ development strategies.", "a development strategies.", "mine development strategies."
"sme development services." » "sme development agencies.", "sme development process.", "sme development africa.", "_ development services.", "a development services.", "asian development services.", "sm_ development services.", "sma development services.", "smmine development services."
"e development studies." » "e development series.", "e development strategy.", "e development policies.", "_ development studies.", "a development studies.", "mine development studies."

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 ("e development strategies."))) or ("sme development services."))~.
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• Adding a wildcard symbol may retrieve word variants: (((("e development studies.") or ("e development strategies."))) or ("sme development services."))*.