You can make any combination of courses that take place successively. Doing successive courses always results in a discount for housing.
We have some suggested combinations listed on our website as 'tracks'. Within these tracks any combination discount and housing discount is already deducted. Considering the fact that all courses are full time, you cannot take several courses in the same period.
(Please note: this information does not apply for the linguistics courses, which you can combine in the same week(s))