Perhaps you should try some spelling variations:
passiv » passiver
passiven » passiveren, passion
passive » passivere
massiv » massive
massively » massiveely, massive
massigen » massiger, massige, massigung

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