Perhaps you should try some spelling variations:
swash » smash, awash
slash » flash, clash, slas
swath » spath, swanh, sath, seath
swat » swan, sat, seat
sleeth » sleech, sleath
sweat » sweet, swept
span » spin
-plate » -plates, -place

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((swash OR slash) OR (((swath OR swat) OR sleeth) OR (sweat OR span)))-plate.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((swash or slash) or (((swath OR swat) or sleeth) or (sweat or span)))-plate".
• Adding a wildcard symbol may retrieve word variants: ((swash or slash) or (((swath OR swat) or sleeth) or (sweat or span)))-plate*.