Perhaps you should try some spelling variations:
slash » flash, clash, slas
swath » spath, sweath, sath, seath
sweath » sheath, sweat, sweats
swat » sweat, sat, seat
sleath » sheath, sleeth, sneath
sweet » sheet
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: ((smash OR slash) OR ((((swath OR sweath) OR swat) OR sleath) OR (sweet OR swan)))-plate.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((smash or slash) or ((((swath OR sweath) or swat) or sleath) or (sweet or swan)))-plate".
• Adding a wildcard symbol may retrieve word variants: ((smash or slash) or ((((swath OR sweath) or swat) or sleath) or (sweet or swan)))-plate*.