Perhaps you should try some spelling variations:
"supply grid integration efforts." » "supply grid international efforts.", "supply grid conservation efforts.", "supply trade integration efforts.", "supply _ integration efforts.", "supply data integration efforts.", "supply crowd integration efforts.", "support grid integration efforts."
"supply shadow tolling services." » "supply shadow modeling services.", "supply shadow online services.", "supply shadow testing services.", "supply shadow tolls services.", "supply shadow toll services.", "supply how tolling services."

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