Praise be to Allah, the Lord of the Worlds; and may His blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions.
You are obliged to perform the prayers in their fixed times. It is forbidden to delay them till the fixed time ends whether one is at university or any other place.
If you try to perform the prayers on their fixed times surely you will find the time and the place. Always bear in mind that the Prophet (Sallallahu Alaihi wa Sallam) said: "The earth has been made for me (and for my followers) a place for offering Salat (prayer) and a thing to purify (perform Tayammum), therefore anyone of my followers can offer Salat wherever he is, at the time of a Salat" .
As for the prayers you missed then and still have not offered yet, you have to make them immediately after knowing the rulings. May Allah help you.
As for how to make up missed prayers please read the Fatwa: 83818.
Allah knows best.