After the Han Chinese conquered what is now Vietnam, the Vietnamese people adopted Response area. In the Philippines, a sultanate controlled the area which led to the spread of Response area in the area.
Islam as well. This is because the sultanate promoted the religion and many Filipinos embraced it, eventually leading to the spread of Islam throughout the region.
In both Vietnam and the Philippines, the adoption of new religions and cultures was a result of foreign conquest and influence. However, over time, these influences became integrated into the local societies and have shaped the identity and beliefs of the Vietnamese and Filipino people to this day.