Perhaps you should try some spelling variations:
"support gvc international efforts." » "support gvc international airports.", "support gvc international energy.", "support gvc international airport.", "support g20 international efforts.", "support much international efforts.", "support save international efforts.", "support ndc international efforts.", "support agri international efforts.", "support grid international efforts."
"support aid conservation efforts." » "support land conservation efforts.", "support bird conservation efforts.", "support basic conservation efforts.", "support grid conservation efforts.", "support a conservation efforts."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("support aid conservation efforts.") or ("support gvc international efforts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support aid conservation efforts.") OR ("support gvc international efforts.")).
• Removing quotes may allow a broader search: (( support aid conservation efforts. ) or ( support gvc international efforts. )).
• Adding a wildcard symbol may retrieve word variants: (("support aid conservation efforts.") or ("support gvc international efforts."))*.