Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
wang wang » wang yang, wang liang, wang yan
yuan hui » yuan fei, jaan hui, tuan hua
tan chia » than china, can china, dan china
yang jui » yang judy, yang di, yang xi
jui ying » hui ying, huei ying, li ying
ying shu » ying zhu, cong shu, ying 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: wang wang ((yuan hui) OR (((tan chia) OR (tuan china)))) (ren OR rene) yang jui ying shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang wang ((yuan hui) or (((tan chia) or (tuan china)))) (ren or rene) yang jui ying shu ;*.