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 chain irrigation scheme." » "supply chain irrigation systems.", "supply change irrigation scheme.", "supply basin irrigation scheme.", "supply chain integration scheme."

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

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