Perhaps you should try some spelling variations:
massiv » massive
massiverer » massiveerer, massivere, massierer, massigeren, massiveer, passiverer, massivelyer
massiveer » massiveeer, massive, massively, massinger
massiver » massiveer, massive, passiver, massively
massiven » massiveen, massive, passiven, massively
passiverer » passiverwerb, passivieren, passiver

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