Kobo supports UTF-8, so you can read books in different languages. What it doesn't is searching by anything different than (extended) LATIN.
If I read text in cyrillic there is no way to search by cyrillic term, by typing them, via the virtual keyboard.
Please add keyboard layouts to the virtual keyboard and let me choose cyrillic from the settings menu.
Personally I own Kobo Glo, but since both Glo and Touch use virtual keyboard, the feature is the same and many international users (like me) will benefit from it!