Perhaps you should try some spelling variations:
"support carbon international efforts." » "support carbon international airports.", "support carbon international energy.", "support carbon international airport.", "support caricom international efforts.", "support care international efforts.", "support can international efforts.", "supporting carbon international efforts."
"support good conservation efforts." » "support soil conservation efforts.", "support land conservation efforts.", "support bird conservation efforts.", "support tool conservation efforts.", "support grid conservation efforts.", "support poor conservation efforts."

Try widening your search to All Fields.

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

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