Most books in Chinese and about Chinese are found in call number range PL1001-3208.
Use advanced search in Bobcat to find resources in the Chinese language. You can search using Chinese text or transliteration.
If you aren't finding enough, expand your search to All Collections to include NYU Bobst library or use Worldcat.org to find items from other libraries that you can borrow via NYU EZBorrow or Inter Library Loan.