Guanyin Famen
Quan Yin Buddhism (Chinese 觀音法門 Guanyin Famen, 中華民國禪定學會) or the teachings of the Ching Hai World Society is a school of Buddhism founded by the ethnic-Chinese Vietnamese teacher Ching Hai.
Vietnam and China
It is among the Proscribed sects in Vietnam and China and has been seen to respond to controls with cybersectarianism.