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

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

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