Perhaps you should try some spelling variations:
swash » slash, swath
awash » wash, akash, arash
smash » slash
clash » class, flash, crash
spate » spater, spaten, space
swain » spain, swan, stain
spans » span
swat » sweat, swan, sat
-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 awash) OR smash) OR clash) OR ((spate OR (swain OR spans)) OR swat))-plate.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((swash OR awash) or smash) or clash) or ((spate or (swain or spans)) or swat))-plate".
• Adding a wildcard symbol may retrieve word variants: ((((swash OR awash) or smash) or clash) or ((spate or (swain or spans)) or swat))-plate*.