Perhaps you should try some spelling variations:
"supply cost international airports." » "supply cost international airport.", "supply cost international transport.", "supply cost international airshow.", "supply costs international airports.", "supply costea international airports.", "supply 1st international airports."
"supply crowd irrigation system." » "supply crowd irrigation systems.", "supply crowd irrigation water.", "supply crowd irrigation scheme.", "supply crop irrigation system.", "supply flood irrigation system.", "supply from irrigation system.", "supply growth irrigation system."

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