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

Try widening your search to All Fields.

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