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."
"support grid integration social." » "support grid international social.", "support trade integration social.", "support _ integration social.", "support data integration social.", "support agri integration social.", "support grant integration social.", "support group integration social."

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