Perhaps you should try some spelling variations:
passiv » passive, passiver
passiven » passiveen, passiveren, passive, passion
passiveen » passiveeen, passivereen, passiveand, passiverer, passive
passivieren » passiveieren, passiverieren, passivierung, passieren, passagieren
passivierende » passiveierende, passiverierende, passivierungde, passierende, passagierende, passivierender, aktivierende, passivierung
massiven » massive, massiveen
massiv » massive
massively » massiveely, 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 (passiven OR passiveen)) OR (((massiven OR massiv) OR massively) OR (passivieren OR passivierende))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((passiv or (passiven or passiveen)) or (((massiven OR massiv) or massively) or (passivieren or passivierende)))".
• Adding a wildcard symbol may retrieve word variants: ((passiv or (passiven or passiveen)) or (((massiven OR massiv) or massively) or (passivieren or passivierende)))*.