Perhaps you should try some spelling variations:
"supply chain integration theories." » "supply chain integration theory.", "supply chain integration through.", "supply chain integration reforms.", "supply trade integration theories.", "supply data integration theories.", "supply grid integration theories."
"supply crowd integration efforts." » "supply crowd international efforts.", "supply crowd conservation efforts.", "supply grid integration efforts.", "supply trade integration efforts.", "supply urban integration efforts.", "supply growth integration efforts.", "supply cost integration efforts.", "supply how integration efforts."

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