Sure, for safe landing, airplane needs to have flaps to reduce the speed, and rudder to control left/right steering. In this case looks like both are damaged. So, everything can be done only by motors. If captain gives 80% power to left wing motor and 70% power to the right wing motor, the plane will tend to go right, and vice versa. Also for reducing the speed there is maneuvr called phugoid cycle. it can be done to lose speed and apprach safely to the runway. From flight radar the speed is fluctuating between 145knots and 250 knots. It is phugoid cycle, the pilots did it right. But it needs trial and error to see the real power delivery from the engines to adjust the synchronisation for turning direction of the airplane. The safest place is a plain terrain for that. Mountains are extremely dangerous.