Perhaps you should try some spelling variations:
passiv » massiv
passive » massive
passiveerer » massiveerer, passiverer, passivieren, passiverwerb, passivererer, passivierter, passivelyer
passiveer » massiveer, passiverer, passiviert, passively
passiver » massiver, passively, passiert
passiven » massiven, passion

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 passive) OR ((passiveerer OR passiveer) OR (passiver OR passiven))).
• Adding a wildcard symbol may retrieve word variants: ((passiv or passive) or ((passiveerer or passiveer) or (passiver or passiven)))*.