Perhaps you should try some spelling variations:
"supply managing international competition." » "supply managing international cooperation.", "supply managing international competitiveness.", "supply managing international comparisons.", "supply management international competition.", "supply marketing international competition.", "supply measuring international competition."
"supply trade integration theory." » "supply trade integration through.", "supply trade information theory.", "supply trade integration report.", "supply side integration theory.", "supply case integration theory."

Try widening your search to All Fields.

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