Perhaps you should try some spelling variations:
methode vi » methoden vi, methode von, methode 2
iii bavel » iii travel, iii based, iii base
iii basel » iii based, iii base, iii basen
vi bavel » van bavel, vi based, vi baked

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: (( methode ((iii bavel) OR (iii basel)) / gtt ) OR ( methode vi bavel / gtt )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( methode ((iii bavel) OR (iii basel)) / gtt ) or ( methode vi bavel / gtt ))".
• Adding a wildcard symbol may retrieve word variants: (( methode ((iii bavel) OR (iii basel)) / gtt ) or ( methode vi bavel / gtt ))*.