Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passiveeren » passiveeeren, massiveeren, passiveneeren, passivieren, passieren, passiverer
passivierung » passiveierung, massivierung, passivenierung, aktivierung
passivenely » passiveenely, massivenely, passivenenely, passively
passiver » passiveer, massiver, passivener, passive, passiven, passively

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 (passiveeren OR passivierung)) OR (passivenely OR passiver)).
• Adding a wildcard symbol may retrieve word variants: ((passiv or (passiveeren or passivierung)) or (passivenely or passiver))*.