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 crowd integration theories." » "supply crowd integration theory.", "supply crowd integration through.", "supply crowd integration efforts.", "supply grid integration theories.", "supply trade integration theories.", "supply chain integration theories.", "supply growth integration theories.", "supply cost integration theories.", "supply how 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 crowd integration theories."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply data integration theories.\") OR (\"supply crowd integration theories.\"))*".
• Removing quotes may allow a broader search: (( supply data integration theories. ) OR ( supply crowd integration theories. ))*.