Perhaps you should try some spelling variations:
"supply grid integration theories." » "supply grid integration theory.", "supply grid integration through.", "supply grid integration efforts.", "supply trade integration theories.", "supply _ integration theories.", "supply data integration theories.", "supply crowd integration theories.", "support grid integration theories."
"supply green banking services." » "supply free banking services.", "supply open banking services.", "supply green banks services.", "supply urban banking services.", "supply green banking series."

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"supply green banking services.\") OR (\"supply grid integration theories.\"))~".
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