Perhaps you should try some spelling variations:
"supply data integration theories." » "supply data integration theory.", "supply data integration through.", "supply data integration efforts.", "supply trade integration theories.", "supply _ integration theories.", "supply data integrity theories.", "supply water integration theories."
"supply case integration theories." » "supply case integration theory.", "supply case integration through.", "supply case integration efforts.", "supply care integration theories.", "supply fare integration theories.", "supply can integration theories.", "supply cost integration theories.", "supply chain integration theories.", "supply curve integration theories."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply data integration theories.") or ("supply case integration theories."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply data integration theories.") OR ("supply case integration theories.")).
• Removing quotes may allow a broader search: (( supply data integration theories. ) or ( supply case integration theories. )).
• Adding a wildcard symbol may retrieve word variants: (("supply data integration theories.") or ("supply case integration theories."))*.