Perhaps you should try some spelling variations:
yuan chang » yuan cheng, huang chang, han chang
gene yang » gene bank
tan chia » tuan china, than china, can china
tuan hua » yuan hui
yang lin » yang jin, wang lin, yang li
lin wong » lin zong, kie wong, lin ling
wong yue » wang yue, hong yu
tan hua » wang hua, tan puay
tuan vu » thanh vu

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

• Performing a fuzzy search may retrieve terms with similar spellings: yuan chang ((((tan hua) or (tan chia))) or (((tuan hua) or (tuan vu)))) gene yang lin wong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yuan chang ((((tan hua) OR (tan chia))) OR (((tuan hua) OR (tuan vu)))) gene yang lin wong yue ;.
• Adding a wildcard symbol may retrieve word variants: yuan chang ((((tan hua) or (tan chia))) or (((tuan hua) or (tuan vu)))) gene yang lin wong yue ;*.