Perhaps you should try some spelling variations:
"supply european integration efforts." » "supply european international efforts.", "supply european conservation efforts.", "supply europe integration efforts.", "survey european integration efforts."
"support grid testing services." » "support grid existing services.", "support grid lending services.", "support grid training services.", "support agri testing services.", "support grant testing services.", "support group testing services.", "support ground testing services.", "support covid testing services.", "support rapid testing 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: (("support grid testing services.") OR ("supply european integration efforts."))~.
• Removing quotes may allow a broader search: (( support grid testing services. ) or ( supply european integration efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (("support grid testing services.") or ("supply european integration efforts."))*.