Perhaps you should try some spelling variations:
passiv » passive, passiven, passiver
passiveierung » passiveeierung, passiveneierung, passivereierung, passivierung, passivierungs, passivieren
passivierender » passiveierender, passivenierender, passiverierender, passivierende, aktivierender, passivieren
passiveer » passiveeer, passiveneer, passivereer, passiverer, passiver, passiviert
massiv » massive

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 (passiveierung OR passivierender)) OR massiv) OR passiveer)*.