Perhaps you should try some spelling variations:
mathematiker » mathematik
mathematikers » mathematiks, mathematikern, mathematik, mathematiklehrer
mathematikums » mathematikbuch, mathematik, mathematikern
mathematikund » mathematikbuch, mathematik, mathematikern

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: ((mathematiker OR (mathematikums OR mathematikers)) OR mathematikund).
• Adding a wildcard symbol may retrieve word variants: ((mathematiker or (mathematikums or mathematikers)) or mathematikund)*.