Perhaps you should try some spelling variations:
"supply a international airports." » "supply a international airport.", "supply a international transport.", "supply a international airshow.", "supply _ international airports.", "supply 3 international airports.", "supply 2 international airports."
"supply chain integration schemes." » "supply chain irrigation schemes.", "supply chain integration some.", "supply chain integration theories.", "supply trade integration schemes.", "supply data integration schemes.", "supply grid 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 a international airports.") or ("supply chain integration schemes."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply a international airports.") OR ("supply chain integration schemes.")).
• Removing quotes may allow a broader search: (( supply a international airports. ) or ( supply chain integration schemes. )).
• Adding a wildcard symbol may retrieve word variants: (("supply a international airports.") or ("supply chain integration schemes."))*.