Perhaps you should try some spelling variations:
arash » crash, brash, trash
smash » slash
spat » spot, spam, spamt
spa » spam
span » spamn, spin
swept » sweet
-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: ((arash OR smash) OR ((spat OR spa) OR (swept OR span)))-plate*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((arash or smash) or ((spat OR spa) or (swept or span)))-plate*".