Perhaps you should try some spelling variations:
"support group international efforts." » "support group international airports.", "support group international energy.", "support group international airport.", "support crop international efforts.", "support growth international efforts.", "support up international efforts.", "support grant international efforts."
"support bird conservation efforts." » "support land conservation efforts.", "support situ conservation efforts.", "support fuel conservation efforts.", "support build conservation efforts.", "support big conservation efforts.", "support add 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 bird conservation efforts.") or ("support group international efforts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support bird conservation efforts.") OR ("support group international efforts.")).
• Removing quotes may allow a broader search: (( support bird conservation efforts. ) or ( support group international efforts. )).
• Adding a wildcard symbol may retrieve word variants: (("support bird conservation efforts.") or ("support group international efforts."))*.