Perhaps you should try some spelling variations:
"export data integration efforts." » "export data international efforts.", "export data conservation efforts.", "export trade integration efforts.", "export _ integration efforts.", "export data integrity efforts.", "export day integration efforts.", "import data integration efforts.", "export ratio integration efforts."
"supply chain integration theory." » "supply chain integration through.", "supply chain information theory.", "supply chain integration report.", "supply trade integration theory.", "supply grid integration theory."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("export data integration efforts.") or ("supply chain integration theory."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("export data integration efforts.") OR ("supply chain integration theory."))*.
• Removing quotes may allow a broader search: (( export data integration efforts. ) or ( supply chain integration theory. ))*.