Perhaps you should try some spelling variations:
yuan wang » yan wang, yuan kang, yuan chang
wang yang » wang yan, wang liang, wang yanling
hua rene » hua ren, juan rene
yang jin » yang jun, ying jin, shang jin
yang jie » yang di, yang jui, yang xi
yang lin » wang lin, yang li, yang liang
wong yue » wang yue, hong yu
dan hua » tan hua, wang hua, dong hua

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: ((yuan wang) OR (wang yang)) dan hua rene ((((yang jin) OR (yang jie))) OR (yang lin)) wong yue ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yuan wang) or (wang yang)) dan hua rene ((((yang jin) OR (yang jie))) or (yang lin)) wong yue ;~".
• Adding a wildcard symbol may retrieve word variants: ((yuan wang) or (wang yang)) dan hua rene ((((yang jin) OR (yang jie))) or (yang lin)) wong yue ;*.