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 content generation theory." » "supply next generation theory.", "supply content creation theory.", "supply content generation through.", "supply content education theory.", "supply content innovation theory.", "supply contract generation theory.", "supply cote generation theory.", "supply constraint generation 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 content generation theory."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply chain integration theory.") OR ("supply content generation theory."))*.
• Removing quotes may allow a broader search: (( supply chain integration theory. ) or ( supply content generation theory. ))*.