Perhaps you should try some spelling variations:
"support grid integration efforts." » "support grid international efforts.", "support grid conservation efforts.", "support agri integration efforts.", "support grant integration efforts.", "support group integration efforts."
"support africa irrigation schemes." » "support africa irrigation scheme.", "support africa irrigation systems.", "support africa immigration schemes.", "support syria irrigation schemes.", "support drip irrigation schemes.", "supporting africa irrigation schemes.", "supply africa irrigation schemes.", "support price irrigation schemes."

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

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