Perhaps you should try some spelling variations:
"support how international efforts." » "support how international airports.", "support how international energy.", "support how international airport.", "support new international efforts.", "support law international efforts.", "support 1 international efforts.", "support had international efforts.", "support his international efforts.", "support come international efforts."
"support agri conservation efforts." » "support negro conservation efforts.", "support bird conservation efforts.", "support aid conservation efforts.", "support grid conservation efforts.", "support aging conservation efforts.", "support a 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 agri conservation efforts.") OR ("support how international efforts."))~.
• Removing quotes may allow a broader search: (( support agri conservation efforts. ) or ( support how international efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (("support agri conservation efforts.") or ("support how international efforts."))*.