Perhaps you should try some spelling variations:
"sme development studies." » "sme development services.", "sme development strategies.", "sme development strategy.", "trade development studies."
"a development studies." » "a development services.", "a development strategies.", "a development strategy."
"mine development series." » "mine development services.", "mine development agencies.", "mine development strategies.", "trade development series.", "business development series."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("sme development studies.") OR ("a development studies."))) OR ("mine development series."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"sme development studies.\") OR (\"a development studies.\"))) OR (\"mine development series.\"))".
• Removing quotes may allow a broader search: (((( sme development studies. ) OR ( a development studies. ))) OR ( mine development series. )).
• Adding a wildcard symbol may retrieve word variants: (((("sme development studies.") OR ("a development studies."))) OR ("mine development series."))*.