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 crowd integrating services." » "supply crowd integrated services.", "supply crowd testing services.", "supply crowd integrating policies.", "supply now integrating services.", "supply toward integrating services.", "supply china integrating services.", "supply growth integrating services.", "supply cost integrating services.", "supply how integrating 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 crowd integrating services."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply chain integration theories.") OR ("supply crowd integrating services.")).
• Removing quotes may allow a broader search: (( supply chain integration theories. ) or ( supply crowd integrating services. )).
• Adding a wildcard symbol may retrieve word variants: (("supply chain integration theories.") or ("supply crowd integrating services."))*.