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 fare integration schemes." » "supply fare integration schengen.", "supply fare irrigation schemes.", "supply fare integration regimes.", "supply trade integration schemes.", "supply die integration schemes.", "supply farm integration schemes.", "supply case integration schemes.", "supply figure integration schemes."

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

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