Perhaps you should try some spelling variations:
"supply case integration series." » "supply case integration services.", "supply case interaction series.", "supply case integration server.", "supply care integration series.", "supply scale integration series.", "supply based integration series.", "supply cost integration series.", "supply chain integration series.", "supply curve integration series."
"supply gap irrigation schemes." » "supply gap irrigation scheme.", "supply gap irrigation systems.", "supply gray irrigation schemes.", "supply grain irrigation schemes.", "supply drip irrigation schemes.", "supply a irrigation schemes."

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply case integration series.") OR ("supply gap irrigation schemes."))~.
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