Looking for a shared apartment for rent in Munich

REAL ESTATE
I'm Rayen, a 19-year-old student from Tunisia and i'm going to study my bachelor in Computer Science at TUM starting the upcoming winter semester. I've sent a lot of applications to multiple dorms but many of them haven't answered me yet and only one has put me on their waiting list. For this reason i'm looking for a shared apartment for rent in Munich (WG) preferably not more than 45 Min away (by the subway) from Garching. My budget is around 400-500. 
Any Feedback would be highly appreciated !

Facebook:https://www.facebook.com/rayen.mhadhbiii