Perhaps you should try some spelling variations:
wang liang » wang yang
wang tang » wang yang, tang tang, wang yan
liu yuan » liu yan, liu jiyuan, liu yu
yuan yi » yuan li, yuan zi, yuan fei
yi yang » yin yang, yu yang, ying yang
yi gang » ii gang, i gang, yu gang
li gang » liu gang, ii gang, i 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)) liu yuan yi yang ((yi gang) OR (li gang)) zheng ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang tang) or (wang liang)) liu yuan yi yang ((yi gang) OR (li gang)) zheng ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang tang) or (wang liang)) liu yuan yi yang ((yi gang) OR (li gang)) zheng ;*.