Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passivere » passiveere, massivere, passivenere, passiverer, passiver
passivieren » passiveieren, massivieren, passivenieren, passivierung, passieren, passagieren
passivierende » passiveierende, massivierende, passivenierende, passivierungde, passierende, passagierende, passivierender, aktivierende, passivierung
massivierender » passivierender, passivierenden, aktivierender

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 passivieren)) OR (massivierender OR passivierende)).
• Adding a wildcard symbol may retrieve word variants: ((passiv or (passivere or passivieren)) or (massivierender or passivierende))*.