Perhaps you should try some spelling variations:
"supply grid international efforts." » "supply grid international airports.", "supply grid international energy.", "supply grid international airport.", "supply third international efforts.", "supply trade international efforts.", "supply from international efforts.", "supply crowd international efforts.", "support grid international efforts."
"supply case irrigation scheme." » "supply case irrigation systems.", "supply scale irrigation scheme.", "supply change irrigation scheme.", "supply canal irrigation scheme.", "supply cost irrigation scheme.", "supply chain irrigation scheme.", "supply curve 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: (("supply case irrigation scheme.") OR ("supply grid international efforts."))~.
• Removing quotes may allow a broader search: (( supply case irrigation scheme. ) or ( supply grid international efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply case irrigation scheme.") or ("supply grid international efforts."))*.