For me, I've always found Refining my equipment to a higher level to increase the dodge rate. Especially with Hinata in the Ninja Exams. based on the Refine stats, I'd take a guess as to say that Combo Rate is the best chance of increasing Dodge rate. Even by a bit. The description is that it reduces chance of getting Combo'd. And lower combo = less hits. So that may help. Not 100% confirmed though