Perhaps you should try some spelling variations:
passiv » passiven
passiver » passivener, passiven, passively, passiert
passive » passivene
passivere » passivenere, passivene, passivelye, passierte, passiverer, passiviert, passiert
passivieren » passivenieren, passivierende, passivierung, passieren
massivere » massiver, massive, massively, massiveere
massiv » massive

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