Need some help for the correct view_mode tpl.php name

I have two different view_modes for a adv. forum post: in the node and in a view_block with a display suite view mode: full and teaser.
With template advanced-forum-post.tpl.php I can change both view_modes.

I can't find a way to make two tpl.php templates, one for full_mode and one for teaser_mode. E.g node--contentype--view_mode.tpl.php is not working. Does anybody knows the answer?