Chau fled to the city of Shanghai after being deported from Japan, and in 1912, after the Xinhai Revolution (Chinese Revolution), he established "Kofukukai" (Quang Phuc Hoi [Vietnamese for Vietnam Restoration Society]) in Guangdong Province and began working toward the liberation of Vietnam from French colonial rule by force.
その後、日本から追放されたチャウは上海市に逃れ、辛亥革命後の1912年、広東省で「光復会」を創設して武力によるベトナムの解放を目指した。