Perhaps you should try some spelling variations:
slabs » slab
salth » salthe, salts, salah
saleh » sales, salem
sat » salt, satz
spaten » spater, spateren
spitaler » hospitaler, spital, vitaler
-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: (slabs OR ((((salth OR saleh) OR paths) OR sat) OR (spaten OR (spitaler OR spittle))))-plate.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(slabs or ((((salth OR saleh) or paths) or sat) or (spaten or (spitaler or spittle))))-plate".
• Adding a wildcard symbol may retrieve word variants: (slabs or ((((salth OR saleh) or paths) or sat) or (spaten or (spitaler or spittle))))-plate*.