Perhaps you should try some spelling variations:
passiv » massiv, passiven, passiver
passive » massive, passivene, passivere
passivere » massivere, passivenere, passiverere, passiverer, passiver, passivieren
passiverere » massiverere, passivenerere, passivererere, passivererre, passiverre, passivierenre, passiverer, passiverwerb, passivierende
passiverre » massiverre, passivenerre, passivererre, passiver, passierte, passiverer
massivere » massiver, massively, massiven

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