Perhaps you should try some spelling variations:
"supply grid irrigation schemes." » "supply grid irrigation scheme.", "supply grid irrigation systems.", "supply grain irrigation schemes.", "supply drip irrigation schemes.", "supply gray irrigation schemes.", "supply crowd irrigation schemes.", "supply great irrigation schemes.", "support grid irrigation schemes."
"supply battery integrated gender." » "supply water integrated gender.", "supply farmer integrated gender.", "supply battery integrate gender.", "supply battery integrating gender.", "supply battery integrated geodesy.", "supply matter integrated gender.", "supply patterns integrated gender."

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply grid irrigation schemes.") OR ("supply battery integrated gender."))~.
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