Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
qian wang » yiqian wang, qian rong, qian yan
yan wang » yuan wang, yan liang, yan zhang
hua rene » hua ren, juan rene
yang jun » yang jui, pang jun, yang jin
tan hua » tuan hua, wang hua, tan chia
yang li » yang lin, yang di, yang xi
hong yu » wong yue

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((((yan wang) OR (yang yang))) or (qian wang)) tan hua rene ((yang jun) or (yang li)) hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yan wang) OR (yang yang))) OR (qian wang)) tan hua rene ((yang jun) OR (yang li)) hong yu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yan wang) OR (yang yang))) or (qian wang)) tan hua rene ((yang jun) or (yang li)) hong yu ;*".