Perhaps you should try some spelling variations:
"supply vertical integration theories." » "supply regional integration theories.", "supply vertical integration theory.", "supply vertical integration through.", "supply vertical integration efforts."
"supply asian integration series." » "supply asian integrating services.", "supply asian integration schemes.", "supply asian integration social.", "supply urban integration series.", "supply american integration series.", "supply spatial integration series.", "supply side integration series.", "supply asset integration series."

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