Its mean:" all day of month must be for learning, including Sunday"

It's mean: Over time do it in one month for "1 thang hoc nghe"! Now add time for Sunday ( mean it is not relax) for "lai ngay c.nhat" c.nhat is short text for chủ nhật( Sunday)! "Đm" its mean short word for fuck you in language Vietnam when write. Hi dear! I hope you can understand what i saying.. because my English is not good????!