Perhaps you should try some spelling variations:
swash » slash, smash, awash
slas » slabs, seas, sas
swath » spath, sweath, swanh, sath
swat » sweat, swan, sat
spate » spater, spaten, space
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 slas) OR ((swath OR swat) OR (spate OR spam)))-plate.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((swash or slas) or ((swath OR swat) or (spate or spam)))-plate".
• Adding a wildcard symbol may retrieve word variants: ((swash or slas) or ((swath OR swat) or (spate or spam)))-plate*.