Sino-Vietnamese War (Again)?

So tiny Vietnam is ratcheting up the tension with P.R. China over the disputed islands of Nanxia (Spratley and Paracel Islands) in the South China Sea.  The Vietnamese navy is carrying out war game manuevers. 

Earlier Vietnam had accused China of cutting its petro-mining cables whilst the Chinese countered that the Vietnamese navy was harassing their fishermen and threatening their lives.