Perhaps you should try some spelling variations:
passiv » massiv, passiver
passive » massive, passivere
passivene » massivene, passiverene, passiveand, passiverer, passiver, passione
passively » massively, passiverely, passivity
passiven » massiven, passiveren, passion
massiven » massive, massively, massiv
massiveren » massivere, massivement, passivieren
massigeren » massiger, massigen, massivere

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