option 1
if u are useing the a firefox browser which u can get from here
link u could get this addon and then there will be đường dẫn to download on the Youtube video below the info and url the addon is here
link option 2 is to open your browser and go to
link and then copy and paste the url from the Youtube video what bạn can see above the embed and then paste it in the empty box then press get đường dẫn then below it will become three đường dẫn press the one bạn want and then enjoy ;)
