Perhaps you should try some spelling variations:
"supply chain international efforts." » "supply chain international airports.", "supply chain international energy.", "supply chain international airport.", "supply china international efforts.", "supply can international efforts.", "supply sharing international efforts."
"supply chain integration theory." » "supply chain integration through.", "supply chain information theory.", "supply chain integration report.", "supply trade integration theory.", "supply data integration theory.", "supply grid integration theory."

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