Perhaps you should try some spelling variations:
passiv » massiv, passiven, passiver
passive » massive, passivene, passivere
passiverere » massiverere, passivenerere, passivererere, passiverer, passiverwerb, passivierende
massivere » massiver, massive, 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 (passiverere OR massivere))).
• Adding a wildcard symbol may retrieve word variants: (passiv or (passive or (passiverere or massivere)))*.