Perhaps you should try some spelling variations:
slash » flash, slas
clash » class, flash, crash
swat » sweat, swan, sat
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: (((slash OR clash) OR smash) OR (swat OR (spath OR spam)))-plate.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((slash OR clash) or smash) or (swat or (spath or spam)))-plate".
• Adding a wildcard symbol may retrieve word variants: (((slash OR clash) or smash) or (swat or (spath or spam)))-plate*.