Perhaps you should try some spelling variations:
"supply life integration theories." » "supply life integration theorems.", "supply life integrationstheorie 2.", "supply life integration theory.", "supply die integration theories.", "supply fare integration theories.", "supply care integration theories.", "supply lines integration theories."
"supply chain international power." » "supply chains international power.", "supply main international power.", "supply can international power.", "supply chain international poverty.", "supply chain international ports.", "supply chain international panel."

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 life integration theories.") or ("supply chain international power."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply life integration theories.") OR ("supply chain international power.")).
• Removing quotes may allow a broader search: (( supply life integration theories. ) or ( supply chain international power. )).
• Adding a wildcard symbol may retrieve word variants: (("supply life integration theories.") or ("supply chain international power."))*.