Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
wang wing » wang jing, wang ning, wang liang
gene sang » lee sang, gene bank
tan chia » than china, can china, dan china
sang min » sang minh, song min, tang min
min hong » amin hong, tin hong, min hyoung
hong hai » shang hai, zhong tai, dang hai
yuan zi » yan zi, yuan li, yuan fei

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 wing ((((tan chia) OR (tuan china))) OR (yuan zi)) gene sang min hong hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang wing ((((tan chia) OR (tuan china))) or (yuan zi)) gene sang min hong hai ;~".
• Adding a wildcard symbol may retrieve word variants: wang wing ((((tan chia) OR (tuan china))) or (yuan zi)) gene sang min hong hai ;*.