Perhaps you should try some spelling variations:
massiv » massive
massivelye » massiveelye, massively, passively, massivere
massiver » massiveer, massive, massively, massie
massiven » massiveen, massive, passiven, massively
passiver » passive, passiven, passively

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 (massivelye OR ((massiver OR passiver) OR massiven)))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(massiv or (massivelye or ((massiver OR passiver) or massiven)))*".