Perhaps you should try some spelling variations:
"supply some international airports." » "supply some international airport.", "supply some international transport.", "supply some international airshow.", "supply time international airports.", "supply care international airports.", "supply people international airports.", "supply side international airports.", "supply cote international airports.", "supply scheme international airports."
"supply main conservation efforts." » "supply marine conservation efforts.", "supply aid conservation efforts.", "supply mass conservation efforts.", "supply chain conservation efforts.", "supply ann conservation efforts.", "supply many 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: (("supply main conservation efforts.") or ("supply some international airports."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply main conservation efforts.") OR ("supply some international airports.")).
• Removing quotes may allow a broader search: (( supply main conservation efforts. ) or ( supply some international airports. )).
• Adding a wildcard symbol may retrieve word variants: (("supply main conservation efforts.") or ("supply some international airports."))*.