Are there any Bru/Reang member or someone from Tripura here? How comes there is such a big coincidence between the name of a community in Vietnam and the Bru/Reang Community?

There is also a community in Vietnam whose name is Bru and are also known as Riang. Meanwhile the Bru people of Tripura and Mizoram are also known as Reang too. And here’s another thing, when I hear the language of the Bru people ( called Kaubru), it definitely sounds Austrian-asiatic like Khasi. The consonant and sound clusters is just not Sino-Tibetan. (https://youtu.be/Y4MGoYGJ7No?si=OLAl2jwfiAKNDVt6) Also, the aforementioned Bru people of Vietnam also speaks a language called ‘Kaubru’ which is ofcourse Austroasiatic like Khasi and Vietnamese. So, Reang Bros and Sis, how come you guys have missed this which I am sure sheds a huge light on your origin?