Perhaps you should try some spelling variations:
slash » flash, slas
clash » class, flash, crash
swath » spath, sweath, sath, seath
swat » sweat, sat, seat
swan » san, 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 (swath OR (swat OR swan)))-plate*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((slash OR clash) or smash) or (swath or (swat or swan)))-plate*".