Perhaps you should try some spelling variations:
"supply grid international airport." » "supply grid international transport.", "supply grid international airshow.", "supply 3rd international airport.", "supply third international airport.", "supply build international airport.", "supply crowd international airport.", "supply great international airport.", "support grid international airport."
"supply saline irrigation scheme." » "supply saving irrigation scheme.", "supply scale irrigation scheme.", "supply basin irrigation scheme.", "supply saline irrigation systems.", "supply side irrigation scheme.", "supply lines irrigation scheme."

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 saline irrigation scheme.") or ("supply grid international airport."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply saline irrigation scheme.") OR ("supply grid international airport.")).
• Removing quotes may allow a broader search: (( supply saline irrigation scheme. ) or ( supply grid international airport. )).
• Adding a wildcard symbol may retrieve word variants: (("supply saline irrigation scheme.") or ("supply grid international airport."))*.