Perhaps you should try some spelling variations:
passiv » passiven, passiver
passively » passivenely, passiverely, massively, passivity, passiven
passiverely » passivenerely, passivererely, passiverer, passiverwerb
passive » passivene, passivere
massiv » massive
massiven » massiveen, massive, passiven, massively

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 massiv) OR ((passively OR passiverely) OR passive)) OR massiven).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((passiv or massiv) or ((passively OR passiverely) or passive)) or massiven)".
• Adding a wildcard symbol may retrieve word variants: (((passiv or massiv) or ((passively OR passiverely) or passive)) or massiven)*.