use " " around your search term, otherwise it will search for single occurunces of either word or in the same doc, not necessarily in relationship to each other.
Have to say $20 because it has WiFi and that's the glitter right now, but I don't see any more than that to a reseller, so your best chance is to get lucky on an end user somehow... but not sure who would want "wifi series"... Just drawing a blank atm.