Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passively » passiveely, massively, passivenely, passive, passivity
passiveer » passiveeer, massiveer, passiveneer, passiverer, passiver, passiviert
passivierende » passiveierende, massivierende, passivenierende, passivierender, passivieren, aktivierende
massiver » massive, massiven, passiver
massiveand » passiveand, massiven

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 ((passively OR massiver) OR passiveer)) OR (passivierende OR massiveand)).
• Adding a wildcard symbol may retrieve word variants: ((passiv or ((passively or massiver) or passiveer)) or (passivierende or massiveand))*.