Perhaps you should try some spelling variations:
yuan chang » yuan cheng, huang chang, han chang
yuan wang » yan wang, yuan kang, qian wang
hua rene » hua ren, juan rene
yang lin » yang jin, wang lin, yang liang
tan hua » tuan hua, wang hua, tan chia
yang li » yang di, yang xi, yang yi
hong yu » wong yue

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 (yuan chang)) tan hua rene ((yang lin) OR (yang li)) hong yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yuan wang) or (yuan chang)) tan hua rene ((yang lin) OR (yang li)) hong yu ;~".
• Adding a wildcard symbol may retrieve word variants: ((yuan wang) or (yuan chang)) tan hua rene ((yang lin) OR (yang li)) hong yu ;*.