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 trade creating services." » "supply trade heating services.", "supply trade rating services.", "supply trade testing services.", "supply trade creation services.", "supply side creating services.", "supply case creating services."

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