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."
"support flood irrigation systems." » "support flood mitigation systems.", "support led irrigation systems.", "support farm irrigation systems.", "support food irrigation systems.", "support look irrigation systems.", "support follow irrigation systems.", "support flood 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: (("support flood irrigation systems.") or ("supply grid integration efforts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support flood irrigation systems.") OR ("supply grid integration efforts.")).
• Removing quotes may allow a broader search: (( support flood irrigation systems. ) or ( supply grid integration efforts. )).
• Adding a wildcard symbol may retrieve word variants: (("support flood irrigation systems.") or ("supply grid integration efforts."))*.