Perhaps you should try some spelling variations:
massiv » massive
massiveren » massiveeren, massivere, massigeren, massivement
massiveerer » massiveeerer, massivere, massierer, passiverer
passivere » passiverer, passiver, massivere
passivierenr » passivieren, passivierender, passivierende
passively » massively, passive, passivity

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 (massiveren OR massiveerer)) OR ((passivere OR passivierenr) OR passively)).
• Adding a wildcard symbol may retrieve word variants: ((massiv or (massiveren or massiveerer)) or ((passivere or passivierenr) or passively))*.