In keywords don't support national character.
Example of broken keywords
Could you please provide the language file you are using and a small example source to test/debug the issue locally? With the screenshot alone I can see that there's something wrong, but can't check what exactly. Please note that keyword matching operates on byte-level, thus the 14 you see is correct so far (export is 7 chars in UTF8, but 14 bytes in byte representation). The bigger question is if the regexp is interpreted correctly or if it needs escaping of those byte sequences.
1C - file
My geshi-file attach s1c.php.
Example you can see on this site http://irc1c.ru/595/