Perhaps you should try some spelling variations:
swash » swath, smash, awash
slash » flash, clash, slas
sath » sathe, sathi, path
saith » smith, faith, saito
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 slash) OR ((sath OR saith) OR swat))-plate*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((swash or slash) or ((sath OR saith) or swat))-plate*".