Perhaps you should try some spelling variations:
tuan china » wuhan china, taiwan china, yunnan china
wang yong » wang yang, wang hyoung, wang yan
gene yang » gene bank
tan chia » than china, dan china, han china
yan hua » tan hua, ya hua, wang hua
yang ji » yang jui, yang jie, yang jin
won sau » wong sau, wong sam, wong siu

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yong ((yan hua) or (((((tan chia) OR (can china))) or (tuan china)))) gene yang ji won sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong ((yan hua) OR (((((tan chia) OR (can china))) OR (tuan china)))) gene yang ji won sau ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong ((yan hua) or (((((tan chia) OR (can china))) or (tuan china)))) gene yang ji won sau ;".
• Adding a wildcard symbol may retrieve word variants: wang yong ((yan hua) or (((((tan chia) OR (can china))) or (tuan china)))) gene yang ji won sau ;*.