Perhaps you should try some spelling variations:
"supply grid integration efforts." » "supply grid international efforts.", "supply grid conservation efforts.", "supply crowd integration efforts.", "supply great integration efforts.", "support grid integration efforts."
"supply case irrigation system." » "supply case irrigation systems.", "supply case irrigation water.", "supply case irrigation scheme.", "supply scale irrigation system.", "supply use irrigation system.", "supply change irrigation system.", "supply cost irrigation system.", "supply chain irrigation system.", "supply curve 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 grid integration efforts.") or ("supply case irrigation system."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply grid integration efforts.") OR ("supply case irrigation system.")).
• Removing quotes may allow a broader search: (( supply grid integration efforts. ) or ( supply case irrigation system. )).
• Adding a wildcard symbol may retrieve word variants: (("supply grid integration efforts.") or ("supply case irrigation system."))*.