Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passiveieren » passiveeieren, massiveieren, passiveneieren, passivieren, passionierten, passivierende
massiven » massive, passiven, massiv
massively » massive
massivieren » passivieren, massigeren, passivierende
massivere » massiver, massive, passiver

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 ((massiven OR massively) OR (passiveieren OR (massivieren OR massivere)))).
• Adding a wildcard symbol may retrieve word variants: (passiv or ((massiven or massively) or (passiveieren or (massivieren or massivere))))*.