Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passiveeeen » passiveeeeen, massiveeeen, passiveneeeen, passivieren
passivierung » passiveierung, massivierung, passivenierung, aktivierung
massiveen » massiven, massivement, massivsten

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 (massiveen OR (passiveeeen OR passivierung))).
• Adding a wildcard symbol may retrieve word variants: (passiv or (massiveen or (passiveeeen or passivierung)))*.