Perhaps you should try some spelling variations:
"support grant integration efforts." » "support grant international efforts.", "support grant conservation efforts.", "support migrant integration efforts.", "support migrants integration efforts.", "support statt integration efforts."
"supply gray irrigation systems." » "supply grain irrigation systems.", "supply gravity irrigation systems.", "supply murray irrigation systems.", "supply great irrigation systems.", "supply gap irrigation systems.", "supply gas irrigation systems.", "supply gray irrigation system."

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

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