Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passivere » passiveere, massivere, passivenere, passiverer, passiver
passivieren » passiveieren, massivieren, passivenieren, passivierende, passivierung, passieren
passiveer » passiveeer, massiveer, passiveneer, passiverer, passiver, passiviert
massively » massive
massiven » massive, passiven, massiv

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 (passivere OR massively)) OR (passivieren OR massiven)) OR passiveer).
• Adding a wildcard symbol may retrieve word variants: (((passiv or (passivere or massively)) or (passivieren or massiven)) or passiveer)*.