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