Perhaps you should try some spelling variations:
"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."
"supply factor integration theory." » "supply factor integration through.", "supply factor information theory.", "supply factor integration report.", "supply facto integration theory.", "supply sector integration theory.", "supply faculty integration theory.", "supply factors integration theory.", "supply water 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 factor integration theory."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply chain integration theory.") OR ("supply factor integration theory.")).
• Removing quotes may allow a broader search: (( supply chain integration theory. ) or ( supply factor integration theory. )).
• Adding a wildcard symbol may retrieve word variants: (("supply chain integration theory.") or ("supply factor integration theory."))*.