Perhaps you should try some spelling variations:
"supply chain international efforts." » "supply chain international airports.", "supply chain international energy.", "supply chain international airport.", "supply china international efforts.", "supply can international efforts.", "supply sharing international efforts."
"supply grid integration social." » "supply grid international social.", "supply trade integration social.", "supply _ integration social.", "supply data integration social.", "supply crowd integration social.", "support grid integration social."

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 grid integration social.") OR ("supply chain international efforts."))~.
• Removing quotes may allow a broader search: (( supply grid integration social. ) or ( supply chain international efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply grid integration social.") or ("supply chain international efforts."))*.