Oh there's no raws.
Third term is a tricky beast. They put up the broadcast info as if the episode has aired, but the episode doesn't actually exist.
The only eps of third term actually being animated are eps 25 and 26, which are to be included with special editions of vol 21 and 22:http://sr.kc.kodansha.co.jp/item.html
Third term is really just a giant cocktease it seems.