Perhaps you should try some spelling variations:
"supply chain integration theories." » "supply chain integration theorems.", "supply chain integrationstheorie 2.", "supply chain integration theory."
"supply case interaction series." » "supply case interactions series.", "supply case interaction studies.", "supply case interaction terms.", "supply cases interaction series.", "supply based interaction series.", "supply scale interaction series.", "supply cost interaction series.", "supply curve interaction series.", "supply costs interaction series."

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