Perhaps you should try some spelling variations:
passiv » passiven, passiver
passive » passivene, passivere
passivenene » passivenenene, passiverenene, passivierende
passiveand » passiveneand, passivereand, passiven
massiv » massive
massiven » massiveen, massive, passiven, massively

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 massiv) OR ((passive OR (passivenene OR passiveand)) OR (massiven OR passion))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((passiv OR massiv) or ((passive or (passivenene or passiveand)) or (massiven or passion)))".
• Adding a wildcard symbol may retrieve word variants: ((passiv OR massiv) or ((passive or (passivenene or passiveand)) or (massiven or passion)))*.