Perhaps you should try some spelling variations:
"_ development studies." » "_ development series.", "_ development services.", "_ development strategies."
"mine development policy." » "sme development policy.", "trade development policy.", "business development policy.", "minsme development policy.", "minsite development policy.", "mintrade development policy."
"e development policy." » "sme development policy.", "site development policy.", "trade development policy."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("_ development studies.") or ((("e development policy.") OR ("mine development policy."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("_ development studies.") OR ((("e development policy.") OR ("mine development policy.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"_ development studies.\") or (((\"e development policy.\") OR (\"mine development policy.\"))))".
• Removing quotes may allow a broader search: (( _ development studies. ) or ((( e development policy. ) OR ( mine development policy. )))).
• Adding a wildcard symbol may retrieve word variants: (("_ development studies.") or ((("e development policy.") OR ("mine development policy."))))*.