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 case integration theory." » "supply case integration through.", "supply case information theory.", "supply case integration report.", "supply care integration theory.", "supply fare integration theory.", "supply can integration theory.", "supply cost integration theory.", "supply curve integration theory.", "supply costs 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 case integration theory."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply chain integration theory.") OR ("supply case integration theory.")).
• Removing quotes may allow a broader search: (( supply chain integration theory. ) or ( supply case integration theory. )).
• Adding a wildcard symbol may retrieve word variants: (("supply chain integration theory.") or ("supply case integration theory."))*.