Perhaps you should try some spelling variations:
"supply chain international efforts." » "supply chain international airports.", "supply chain international energy.", "supply chain international support.", "supply chains international efforts.", "supply main international efforts.", "supply can international efforts."
"supply curve international airport." » "supply curve international transport.", "supply curve international airshow.", "supply survey international airport.", "supply care international airport.", "supply current international airport."

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