The answer is in your own post.
Quote Originally Posted by _Wolf_ View Post
1. Higher number of points obtained in the group matches played among the teams in question
2. Higher goal difference from the group matches played among the teams in question
In the games played between Amedspor and Adrians FC, each team won one, so points are 3-3: the tiebreaker goes to #2.

Amedspor won their home game 2-1, and Adrians FC won theirs 2-0. Thus, the total goal difference between the teams is +1 in favor of Adrians FC. Because of this, Adrians FC wins the tiebreaker, and finishes 3rd.