Perhaps you should try some spelling variations:
"supply can international efforts." » "supply can international airports.", "supply can international energy.", "supply can international airport.", "supply main international efforts.", "supply oman international efforts.", "supply den international efforts.", "supply chain international efforts.", "supply case international efforts.", "supply chai international efforts."
"supply trade integration theories." » "supply trade integration theorems.", "supply trade integrationstheorie 2.", "supply trade integration theory.", "supply case integration theories."

Try widening your search to All Fields.

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

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