Perhaps you should try some spelling variations:
passiv » passive, massiv, passiven
passivierende » passiveierende, massivierende, passivenierende, passivierender, passivieren, aktivierende
passivenierende » passiveenierende, massivenierende, passivenenierende, passivierender, passivierenden
massigeren » massiger, massigen, massivere
massiveeren » massivere, passivieren, massivdecken

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