Perhaps you should try some spelling variations:
yeung tang » leung tang
tang china » hang china, kong china, ming china
china yang » china ying, china wang, china chang
tang tang » taizong tang
wang ning » wang jing, wang liang, wang yang
yang jui » yang judy, yang di, yang yi
yang xi » yang di, yang yi

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: yeung tang tang china yang ((((wang ning) OR (yang xi))) OR (yang jui)) cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: yeung tang tang china yang ((((wang ning) or (yang xi))) or (yang jui)) cong shu ;*.