Perhaps you should try some spelling variations:
"supply chain intermediation theory." » "supply chain introduction theory.", "supply chain determination theory.", "supply chain integration theory.", "supply chain intermediaries theory.", "supply credit intermediation theory.", "supply bank intermediation theory."
"supply vertical integration through." » "supply regional integration through.", "supply vertical innovation through.", "supply partial integration through.", "supply political integration through.", "supply technical integration through."

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 intermediation theory.") or ("supply vertical integration through."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply chain intermediation theory.") OR ("supply vertical integration through."))*.
• Removing quotes may allow a broader search: (( supply chain intermediation theory. ) or ( supply vertical integration through. ))*.