Perhaps you should try some spelling variations:
passiv » massiv, passiver
passiven » massiven, passiveren, passion
passive » massive, passivere
passivierender » massivierender, passiverierender, passivierende, aktivierender, passivieren
passivierungr » massivierungr, passiverierungr, passivierung, passivierungs, passivieren

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 ((passiven OR passive) OR passivierender)) OR passivierungr).
• Adding a wildcard symbol may retrieve word variants: ((passiv or ((passiven or passive) or passivierender)) or passivierungr)*.