Perhaps you should try some spelling variations:
passiv » passive, passiven, passiver
passivene » passiveene, passivenene, passiverene, passiven, passiveand, passiverer
passivere » passiveere, passivenere, passiverere, passiverer, passiver, massivere
passivenere » passiveenere, passivenenere, passiverenere, passivenre, passiveandre, passivererre, passiverer, passiverwerb
massiv » massive

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