Install fonts-thai-tlwg-otf by entering the following commands in the terminal:
sudo apt update sudo apt install fonts-thai-tlwg-otf
Description:
Thai OpenType fonts maintained by TLWG (metapackage)
Shortcut for installing all Thai fonts that are collected, enhanced and maintained by Thai Linux Working Group (TLWG), in OpenType format. . Most modern desktop users who want to use Thai language should install this package.
Homepage: https://linux.thai.net/projects/fonts-tlwg
Version: 1:0.6.4-2
Section: universe/fonts