Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passiveeen » passiveeeen, massiveeen, passiveneeen, passiven, passieren, passiverer
passivieren » passiveieren, massivieren, passivenieren, passivierende, passivierung, passieren
passiveieren » passiveeieren, massiveieren, passiveneieren, passionierten, passivierende, passieren
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 (passiveeen OR (passivieren OR passiveieren))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(passiv or (massiveen or (passiveeen or (passivieren OR passiveieren))))*".