Perhaps you should try some spelling variations:
"support grid international efforts." » "support grid international airports.", "support grid international energy.", "support grid international airport.", "support 3rd international efforts.", "support third international efforts.", "support build international efforts.", "support agri international efforts.", "support grant international efforts.", "support group international efforts."
"support ndc integration efforts." » "support ndc conservation efforts.", "support noc integration efforts.", "support c integration efforts.", "support de integration efforts.", "support new integration efforts.", "support add integration efforts."

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