Beijing, April 16 -- The freshly-ended state visit to Vietnam by General Secretary of the Communist Party of China Central Committee and President of China Xi Jinping has been hailed as an overwhelming success, yielding the most substantial outcomes to date among trips by Chinese leaders to the Southeast Asian country, said a Chinese expert. Interviewed by Vietnam News Agency correspondents in Beijing, Professor Xu Liping, Director of the Centre for Southeast Asian Studies at the Chinese Academy of Social Sciences (CASS), praised the warm and respectful reception given by Vietnam to the high-ranking guest, calling it a reflection of the strong friendship the Vietnamese people hold for China. Xu noted that it marked Xi's fourth trip to Vie...