Perhaps you should try some spelling variations:
swash » smash, awash
slash » flash, clash, slabsh, seash, sash
slas » slabs, seas, sas
swath » swat
spath » spat, xpath, spate
spam » span
-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 slas)) OR (swath OR (spath OR spam)))-plate*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((swash or (slash OR slas)) or (swath or (spath or spam)))-plate*".