Perhaps you should try some spelling variations:
"support group integration efforts." » "support group international efforts.", "support group conservation efforts.", "support grid integration efforts.", "support run integration efforts.", "support through integration efforts.", "support from integration efforts.", "support grant integration efforts."
"support agri irrigation scheme." » "support agri irrigation systems.", "support africa irrigation scheme.", "support syria irrigation scheme.", "support drip irrigation scheme.", "support grid irrigation scheme.", "support a irrigation scheme."

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("support agri irrigation scheme.") OR ("support group integration efforts."))~.
• Removing quotes may allow a broader search: (( support agri irrigation scheme. ) or ( support group integration efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (("support agri irrigation scheme.") or ("support group integration efforts."))*.