There are so many views among scholars in that matter. The most famous ones are:

 

1- You either pray Qasr for each Salat only no combination.

 

2- You pray Qasr and combination (Zuhur and Asr 2 & 2) (Maghreb & Isha 2 & 2) if the travel is for less than 2 weeks.

 

3- Now as to Sunnah during travel, the practice of the prophet (peace be upon him) is that he only prayed one Rak’at Witr and two Rak’at Fajr Sunnah before the Fardd.

 

Almighty Allah knows best.