Perhaps you should try some spelling variations:
slas » seas, sas, suas
slabs » slab
sath » saith, sathi, path
sathe » saithe, sathie, pathe, satze, sache, mathe
swat » sweat, swan, sat
-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: ((slas OR slabs) OR (((sath OR sathe) OR swat) OR spater))-plate.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((slas OR slabs) or (((sath or sathe) or swat) or spater))-plate".
• Adding a wildcard symbol may retrieve word variants: ((slas OR slabs) or (((sath or sathe) or swat) or spater))-plate*.