I would try to do it evenly on left and right body.

I do have 2x dumbbells too.
No gym in university.

U can try
bench press, deadlift, squat, hammer curl, lateral raise, front raise, triceps workout.....

almost every part of your body.

they're everywhere. except nike shops. there a lot of specialized gym equipment outlets at most shopping malls so i don't think it'll be a big problem for you to find it. most dumbbell weight sets come with a 2kg handle bar with 2 spinlocks, 2 1.5kg plates and 2 2.5kg plates. i bought my kettler 10kg dumbbell for rm50. that was around 2 years ago. always look for the thicker bars so you won't sink your own nails into your palm when you grip too hard.