Perhaps you should try some spelling variations:
passiv » massiv, passiven
passivenener » massivenener, passivenenener, passivierender, passiverer
passiver » massiver, passivener, passiven, passively, passiert
passivieren » massivieren, passivenieren, passivierende, passivierung, passieren
passive » massive, passivene

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 (passivenener OR (passiver OR passivieren))) OR passive).
• Adding a wildcard symbol may retrieve word variants: ((passiv or (passivenener or (passiver or passivieren))) or passive)*.