Perhaps you should try some spelling variations:
"supply chain integration theories." » "supply chain integration theorems.", "supply chain integrationstheorie 2.", "supply chain integration theory."
"supply grid international social." » "supply grid international society.", "supply grid international sourcing.", "supply grid international seminar.", "supply 3rd international social.", "supply third international social.", "supply build international social.", "supply crowd international social.", "supply great international social.", "support grid international social."

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply chain integration theories.\") OR (\"supply grid international social.\"))~".
• Removing quotes may allow a broader search: (( supply chain integration theories. ) OR ( supply grid international social. ))~.
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