Perhaps you should try some spelling variations:
"supply chain integration theories." » "supply chain integration theory.", "supply chain integration through.", "supply chain integration efforts.", "supply trade integration theories.", "supply data integration theories.", "supply grid integration theories."
"supply asset integration schemes." » "supply asset irrigation schemes.", "supply asset integration some.", "supply market integration schemes.", "supply asian integration schemes.", "supply asean integration schemes.", "supply assets integration schemes.", "supply aspect integration schemes."

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply asset integration schemes.") OR ("supply chain integration theories."))~.
• Removing quotes may allow a broader search: (( supply asset integration schemes. ) or ( supply chain integration theories. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply asset integration schemes.") or ("supply chain integration theories."))*.