Perhaps you should try some spelling variations:
"supply costs international efforts." » "supply costs international airports.", "supply costs international energy.", "supply costs international airport.", "supply costea international efforts.", "supply counts international efforts.", "supply cases international efforts."
"supply case integration theories." » "supply case integration theorems.", "supply case integrationstheorie 2.", "supply case integration theory.", "supply care integration theories.", "supply scale integration theories.", "supply based integration theories.", "supply cost integration theories.", "supply chain integration theories.", "supply curve 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 case integration theories.") or ("supply costs international efforts."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply case integration theories.") OR ("supply costs international efforts.")).
• Removing quotes may allow a broader search: (( supply case integration theories. ) or ( supply costs international efforts. )).
• Adding a wildcard symbol may retrieve word variants: (("supply case integration theories.") or ("supply costs international efforts."))*.