Perhaps you should try some spelling variations:
"a development services." » "a development process."
"a development policies." » "a development policy.", "a development projects."
"e development studies." » "e development series.", "e development strategies.", "e development strategy.", "sme development studies.", "mine development studies.", "site development studies."

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

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