Perhaps you should try some spelling variations:
"supply chain international airport." » "supply chain international transport.", "supply chain international airshow.", "supply china international airport.", "supply can international airport.", "supply sharing international airport."
"supply trade integration theories." » "supply trade integration theory.", "supply trade integration through.", "supply trade integration efforts.", "supply side integration theories.", "supply case integration theories."

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

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