Perhaps you should try some spelling variations:
than china » tuan china, han china, wuhan china
china john » china joins, child john, china jean
yang yang » wang yang, wang yan
john wong » john song, john bonn
tan yang » tan ying, tan yong, tao yang
dan yang » daun yang, wang yang, adam yang
hua than » hua ban, hua chen, hua zhao
wong yue » wang yue, hong yu

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: lang ((((tan yang) OR (dan yang))) OR (yang yang)) hua than china john wong yue ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang ((((tan yang) OR (dan yang))) or (yang yang)) hua than china john wong yue ;~".
• Adding a wildcard symbol may retrieve word variants: lang ((((tan yang) OR (dan yang))) or (yang yang)) hua than china john wong yue ;*.