Perhaps you should try some spelling variations:
"support states international airport." » "support states international transport.", "support states international airshow.", "support paths international airport.", "support services international airport.", "support state international airport.", "support stage international airport.", "support strategy international airport."
"support land conservation efforts." » "support plans conservation efforts.", "support long conservation efforts.", "support add conservation efforts.", "support land construction 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 land conservation efforts.") or ("support states international airport."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("support land conservation efforts.") OR ("support states international airport.")).
• Removing quotes may allow a broader search: (( support land conservation efforts. ) or ( support states international airport. )).
• Adding a wildcard symbol may retrieve word variants: (("support land conservation efforts.") or ("support states international airport."))*.