Perhaps you should try some spelling variations:
massiv » massive
massivere » massiveere, massiver, massive, massively
passivierende » passivierender, passivieren, aktivierende
passivenierende » passivierender, passivierenden
massigeren » massiger, massigen, massierer

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: (massiv OR ((passivierende OR passivenierende) OR (massigeren OR massivere)))*.