Hi,
After opening this thread:
http://core.trac.wordpress.org/ticket/12361
I see there is no solution or support for non-latin characters in wordpress community.
I understand worrying about breaking backwards compatibility but still thinking of needed some love for non-latin characters in permalinks.
If people can use russian characters, like: примерно
There must be an option support or a way to use those characters like: şŞ İı Ğğ Üü Öö çÇ
(Sorry for bad english)