Perhaps you should try some spelling variations:
tang zheng » wang zheng, fang sheng, fang zhen
wang liang » wang yang
wang tang » wang yang, tang tang, wang yan
min yuan » meng yuan, liu yuan, min aun
yi gang » ii gang, li gang, yi yang
xi tang » xi kang, xi zhang
i gang » ii gang, li gang, 2 gang

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: ((wang tang) OR (wang liang)) min yuan ((yi gang) OR (i gang)) xi tang zheng ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang tang) or (wang liang)) min yuan ((yi gang) OR (i gang)) xi tang zheng ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang tang) or (wang liang)) min yuan ((yi gang) OR (i gang)) xi tang zheng ;*.