Neither does Chinese Google. Just try searching "hentai" on either baidu.com or google.cn. I found a whole lot of not-legal-in-China material. And they can't do anything to me because I'm in the US.
Google has chosen to stop censoring for China: BBC News - Google stops censoring search results in China I imagine most of those kinds search terms are blocked by China ISPs anyway.
I'm glad Google pulled out of china (in the censoring sense of the matter)