Perhaps you should try some spelling variations:
"supply side international efforts." » "supply side international airports.", "supply side international energy.", "supply side international airport.", "supply some international efforts.", "supply time international efforts.", "supply save international efforts."
"supply data integration theory." » "supply data integration through.", "supply data information theory.", "supply data integration report.", "supply trade integration theory.", "supply _ integration theory.", "supply data integrity theory.", "supply water 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: (("supply data integration theory.") or ("supply side international efforts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply data integration theory.") OR ("supply side international efforts.")).
• Removing quotes may allow a broader search: (( supply data integration theory. ) or ( supply side international efforts. )).
• Adding a wildcard symbol may retrieve word variants: (("supply data integration theory.") or ("supply side international efforts."))*.