Cambodian language

I want to add Cambodian as document language & spell checker. Where can I find it ? I have LibreOffice 6

You could try one of these, although I don’t know if they work.

LanguageTool

https://extensions.libreoffice.org/extensions/languagetool

Khmer Spelling Checker (SBBIC Version)

https://extensions.libreoffice.org/extensions/khmer-spelling-checker-sbbic-version