Perhaps you should try some spelling variations:
passiv » massiv, passiven, passiver
passive » massive, passivene, passivere
passiveeren » massiveeren, passiveneeren, passivereeren, passieren, passiverer, passivierende
passiveneeren » massiveneeren, passiveneneeren, passivereneeren
passivieren » massivieren, passivenieren, passiverieren, passivierende, passivierung, passieren
massiveren » massivere, massigeren, massivement

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 (massiveren OR ((passiveeren OR passiveneeren) OR passivieren)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(passiv or (passive or (massiveren or ((passiveeren OR passiveneeren) or passivieren))))".
• Adding a wildcard symbol may retrieve word variants: (passiv or (passive or (massiveren or ((passiveeren OR passiveneeren) or passivieren))))*.