Fantasy novel SERIES not originally in English

I've been recommended many fantasy standalones which were originally published in languages other than English, but I'm looking for multi-book fantasy series. There's a few on my list already, but I'm looking for more!

The Witcher - Andrzej Sapkowski

Inkheart - Cornelia Funke

Night Watch - Sergei Lukyanenko

Metro - Dmitry Glukhovsky 

3 Body Problem - Liu Cixin

Bonus points for series that are translated, but that you really don't see spoken about a lot. Also, what are some incredible novel series that have not yet seen translation?