Perhaps you should try some spelling variations:
passiv » massiv, passiver
passiven » massiven, passiveren, passion
passive » massive, passivere
passivere » massivere, passiverere, passiverer, passiver
passione » passion, passionate, passing
passionen » passionn, passionaten, passingn, passionnes, passion, passieren
passions » passion, passing

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 passiven) OR (passione OR (passionen OR passions))) OR (passive OR passivere)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((passiv or passiven) or (passione or (passionen OR passions))) or (passive or passivere))".
• Adding a wildcard symbol may retrieve word variants: (((passiv or passiven) or (passione or (passionen OR passions))) or (passive or passivere))*.