Perhaps you should try some spelling variations:
passiv » massiv, passiven, passiver
passive » massive, passivene, passivere
passivene » massivene, passivenene, passiverene, passiven, passiveand, passiverer
passivierender » massivierender, passivenierender, passiverierender, passivierende, aktivierender, passivieren
massiven » massive, passiven, massively

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 passive) OR (passivene OR passivierender)) OR (massiven OR massivement)).
• Adding a wildcard symbol may retrieve word variants: (((passiv or passive) or (passivene or passivierender)) or (massiven or massivement))*.