Perhaps you should try some spelling variations:
"support gvc international efforts." » "support gvc international airports.", "support gvc international energy.", "support gvc international airport.", "support etc international efforts.", "support tec international efforts.", "support apec international efforts.", "support g international efforts.", "support agri international efforts."
"support grid conservation efforts." » "support aid conservation efforts.", "support good conservation efforts.", "support grass conservation efforts.", "support agri conservation efforts.", "support grant conservation efforts.", "support group conservation 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 conservation efforts.") OR ("support gvc international efforts."))~.
• Removing quotes may allow a broader search: (( support grid conservation efforts. ) or ( support gvc international efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (("support grid conservation efforts.") or ("support gvc international efforts."))*.