Perhaps you should try some spelling variations:
swash » slash, smash, awash
swath » swat, spath
spat » span, spam, spa
spater » spaner, spamer, spaer
stamer » stammer
-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 swath) OR ((spat OR spot) OR (spater OR stamer)))-plate*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((swash or swath) or ((spat OR spot) or (spater or stamer)))-plate*".