Perhaps you should try some spelling variations:
passiv » passive, passiven, passiver
passivereren » passiveereren, passivenereren, passiverereren, passivieren, passiverer, passivierenden
passiveneren » passiveeneren, passiveneneren, passivereneren, passivieren, passieren, passiverer
massiv » massive
massivere » massiveere, massiver, massive, massively
massierer » kassierer, massferrer, massigeren
kassierers » kassierer, kassiererin, kassieren

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: ((passiv OR massiv) OR ((passivereren OR passiveneren) OR ((massierer OR kassierers) OR massivere)))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((passiv or massiv) or ((passivereren or passiveneren) or ((massierer OR kassierers) or massivere)))*".