Perhaps you should try some spelling variations:
passiv » massiv, passiven
passiver » massiver, passivener, passiven, passively, passiert
passive » massive, passivene
passiveneren » massiveneren, passiveneneren, passieren, passiverer
passivieren » massivieren, passivenieren, passivierende, passivierung, passieren
massiverer » massivere, massierer, passiverer

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 passiver) OR passive) OR (passiveneren OR passivieren)) OR massiverer)*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((passiv OR passiver) or passive) or (passiveneren or passivieren)) or massiverer)*".