Perhaps you should try some spelling variations:
yuan kang » yuan wang, yuan chang, chan kang
qian wang » yiqian wang, qian rong, qian yan
yan wang » yuan wang, yang yang, yan liang
hua rene » hua ren, juan rene
wang qin » wang lin, wang qiao, wang jing
tan hua » tuan hua, wang hua, tan chia
yan tin » yuan ting, yang jin, yang lin

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yuan kang) or (((yan wang) OR (qian wang)))) tan hua rene ((yan tin) or (wang qin)) cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yuan kang) OR (((yan wang) OR (qian wang)))) tan hua rene ((yan tin) OR (wang qin)) cong shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yuan kang) or (((yan wang) OR (qian wang)))) tan hua rene ((yan tin) or (wang qin)) cong shu ;".
• Adding a wildcard symbol may retrieve word variants: ((yuan kang) or (((yan wang) OR (qian wang)))) tan hua rene ((yan tin) or (wang qin)) cong shu ;*.