Perhaps you should try some spelling variations:
"a resource development cooperation problem." » "a resource development cooperation program.", "a resource development cooperation progress.", "a resource development coordination problem."
"web sme development impact programs." » "web trade development impact programs.", "web sme development impact program.", "web sme development space programs.", "web site development impact programs."

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

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