Perhaps you should try some spelling variations:
class dann » class demand
yang liang » wang liang, yan liang, yang yang
one class » one case
dann bin » dong bin
jong min » gong min, song min, song ming
ying jin » yang jin, jing ji, yang jie
wang yue » wong yue, wang hua, wang yan
yang xi » yang di, yang yi, yang jui
bin ce » bin we

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: one class dann bin ce ((((jong min) OR (yang liang))) OR (ying jin)) ((wang yue) OR (yang xi)) ;~.
• Adding a wildcard symbol may retrieve word variants: one class dann bin ce ((((jong min) or (yang liang))) or (ying jin)) ((wang yue) or (yang xi)) ;*.