keyboard for other language (no replies)

I am currently using 5.6.5-kirkwood-tld-1 distribution. Some of the files I have to deal with are in other languages. What do I need to do/download/install to be able to type other language fonts or view through terminal?

$ locale
LANG=C
LANGUAGE=
LC_CTYPE="C"
LC_NUMERIC="C"
LC_TIME="C"
LC_COLLATE="C"
LC_MONETARY="C"
LC_MESSAGES="C"
LC_PAPER="C"
LC_NAME="C"
LC_ADDRESS="C"
LC_TELEPHONE="C"
LC_MEASUREMENT="C"
LC_IDENTIFICATION="C"
LC_ALL=

This is what happens when I view the file.

$ ls
''$'\340\270\243\340\270\261\340\270\201\340\270\225\340\270\264\340\270\224\340\271\204\340\270\213\340\271\200\340\270\243\340\270\231'' .mp3'

This is what happens when I ls and then press tab:

$ ls 
รักติดไซเรน.mp3