Perhaps you should try some spelling variations:
"supply chains international airports." » "supply chains international airport.", "supply chains international transport.", "supply chains international airshow.", "supply china international airports.", "supply china's international airports.", "supply sharing international airports.", "supply chain international airports."
"supply side integration efforts." » "supply side international efforts.", "supply side conservation efforts.", "supply trade integration efforts.", "supply asian integration efforts.", "supply grid integration efforts."

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

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