Need Answer

Does anyone know where to get fire sword or chaos axe?

...dont double post
Fire Sword = everywhere
chaos axe = fow

Have you tried doing a search with for example Google? There are a lot of sites out there that provide complete listings of where in the game various items can be found. For example, I found a site that lists all the skills/spells for each class. When you go into the details of a particular skill or spell, it tells you where there is a skill vendor that will sell that skill, and where the quest may be that gives that skill.

Fiery Dragon Swords are dropped frequently in the desert. I've yet to get a decent axe drop anywhere, so I can't help you with that.