he could be from Kakanj, central Bosnia, and his results would fit that area, but it's not 100% sure. I just found a man with his name from there, but there are other people carrying same name so not confirmed.
https://en.wikipedia.org/wiki/Kakanj
Edit: he really is probably from Kakanj area. one of his closest matches is Bosniak with gedcom that has some locations around Kakanj