Perhaps you should try some spelling variations:
"supply chain integration theories." » "supply chain integration theorems.", "supply chain integrationstheorie 2.", "supply chain integration theory."
"Supply trade integration theories." » "Supply trade integration theorems.", "Supply trade integrationstheorie 2.", "Supply trade integration theory."
supply trade » supply case

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply chain integration theories.") OR ("Supply trade integration theories."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply chain integration theories.\") OR (\"Supply trade integration theories.\"))*".
• Removing quotes may allow a broader search: (( supply chain integration theories. ) OR ( Supply trade integration theories. ))*.