Well, if the China government and people of China have seen they claim too much, to the illogical and irrational, then the peace negotiations will certainly evolve. But in reality, China has always disregards the interests of other countries, they only want to rely on their muscle strength to bully smaller countries surrounding the East Sea (south china sea).
Vietnam has ridiculous claims clearly, claiming islands that are 400 miles away from their shores and with no historical rights to back them up Vietnam is the most illegitimate party in the entire South China Sea claim, i suggest you look at the picture clearly, if it comes to an internationalized approach Vietnam will gain nothing.