Its more likely a problem with your set locale than with the fonts themselves.
Unfortunately,, although I will try my best, I don't really mess with my locales all too often since I use English exclusively.
in Arch Linux, the locales can be found in "/etc/locale.gen" but it could be different for your system.
In Ubuntu, I looked around and found them as well, in "/usr/lib/X11/locale/locale.alias" and "/etc/locale.alias"
If the file does exist, simply add the languages' corresponding locale and ISO and reboot.
You SHOULD be able to see your fonts as expected, but I can't give a guarantee because like I said, never tried to mess w/ that.
Hope this helps.