Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passivierender » passiveierender, massivierender, passivenierender, passivierende, aktivierender, passivieren
passivene » passiveene, massivene, passivenene, passiven, passiveand, passiverer
massierer » kassierer, kassierers, massferrer

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 (passivierender OR massierer)) OR passivene).
• Adding a wildcard symbol may retrieve word variants: ((passiv or (passivierender or massierer)) or passivene)*.