Perhaps you should try some spelling variations:
massiv » massive
passiveneren » passieren, passivenen, passiveren, passiverwerben
passiverer » passiverwerb, passiver, passieren, passiverr, massiverer, passiviertr
passivieren » passivierende, passivierung, passieren
passivere » passiver, massivere, passiviert
passivener » passiven, passiver, passiverwerb

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