Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passiveren » passiveeren, massiveren, passiveneren, passivieren, passieren, passiven
passiverer » passiveerer, massiverer, passivenerer, passiverwerb, passivieren, passiver
passivierende » passiveierende, massivierende, passivenierende, passivierender, passivieren, aktivierende
passivierungr » passiveierungr, massivierungr, passivenierungr, passivierung, passivierungs, passivierender

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 ((passiveren OR passiverer) OR passivierende)) OR passivierungr).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((passiv or ((passiveren OR passiverer) or passivierende)) or passivierungr)".
• Adding a wildcard symbol may retrieve word variants: ((passiv or ((passiveren OR passiverer) or passivierende)) or passivierungr)*.