Perhaps you should try some spelling variations:
main » mein (Expand Search)
deines\" » eines\" (Expand Search), meines\" (Expand Search), seines\" (Expand Search)
deiner\" » einer\" (Expand Search), seiner\" (Expand Search), leiner\" (Expand Search)
meiner\" » einer\" (Expand Search), meine\" (Expand Search)
seinen\" » seiner\" (Expand Search), einen\" (Expand Search), meinen\" (Expand Search), seinn\" (Expand Search)
seine\" » eine\" (Expand Search), meine\" (Expand Search), sein\" (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "\"\\"(sohn OR main) ((deines\\" OR (deiner\\" OR meiner\\")) OR (seinen\\" OR seine\\"))\"".
• Removing quotes may allow a broader search: (sohn OR main) ((deines OR (deiner OR meiner )) OR (seinen OR seine )).