Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
wang hong » wang yong, wang hyoung, wang lihong
tan chia » than china, can china, dan china
jiu kong » jiu cong, liu kung, liu yong
tan hua » tuan hua, wang hua, tan puay
yan jiu » yang jie, yang jin, pang jiu
sar » sara, star, saur

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 hong ((tan hua) OR (((tan chia) OR (tuan china)))) (rain OR brain) yan jiu kong sar ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang hong ((tan hua) or (((tan chia) OR (tuan china)))) (rain or brain) yan jiu kong sar ;~".
• Adding a wildcard symbol may retrieve word variants: wang hong ((tan hua) or (((tan chia) OR (tuan china)))) (rain or brain) yan jiu kong sar ;*.