Perhaps you should try some spelling variations:
"methode vii bavel / gtt" » "methoden vii bavel / gtt", "methods vii bavel / gtt", "method vii bavel / gtt", "methode voni bavel / gtt", "methode 2i bavel / gtt", "methode vii bases / gtt"
"methode van bavel / gtt" » "methode von bavel / gtt", "methode v bavel / gtt", "methode vom bavel / gtt"
"methode vi bavel / gtt" » "methoden vi bavel / gtt", "methode von bavel / gtt", "methode 2 bavel / gtt", "methode vi based / gtt", "methode vi baked / gtt", "methode vi bases / gtt"
"methode 3 bavel / gtt" » "methode 2 bavel / gtt", "methode 3 basel / gtt"

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 van bavel / gtt") OR ("methode vi bavel / gtt"))) OR ("methode vii bavel / gtt"))) OR ("methode 3 bavel / gtt"))*.
• Removing quotes may allow a broader search: (((((( methode van bavel / gtt ) or ( methode vi bavel / gtt ))) or ( methode vii bavel / gtt ))) or ( methode 3 bavel / gtt ))*.