Perhaps you should try some spelling variations:
"support policy integration efforts." » "support policy international efforts.", "support policy conservation efforts.", "support political integration efforts.", "support policy intervention efforts.", "support policies integration efforts.", "import policy integration efforts."
"support grid integration efforts." » "support grid international efforts.", "support grid conservation efforts.", "support agri integration efforts.", "support grant integration efforts.", "support group integration efforts."

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

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