Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
yang yao » yang yang, wang yan
yang fan » zhang fan, yang dean, yang yang
hua rene » hua ren, juan rene
yang lin » yang jin, wang lin, yang li
yang yi » yang di, yang xi, yang jui
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: dong ((((yang yao) OR (yang fan))) OR (yang yi)) hua rene ((yang lin) OR (sang minh)) hong yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong ((((yang yao) OR (yang fan))) or (yang yi)) hua rene ((yang lin) or (sang minh)) hong yu ;~".
• Adding a wildcard symbol may retrieve word variants: dong ((((yang yao) OR (yang fan))) or (yang yi)) hua rene ((yang lin) or (sang minh)) hong yu ;*.