Perhaps you should try some spelling variations:
yuan chen » yuan cheng, yun chen, sudan chen
chen yang » chen rong
than wong » thang long, than one
than done » than one, than money
yang iii » klang iii, yang zili, zwang iii
iii gene » iii rene, iii gender, iii genome
gene we » gene w, gene one, gene set

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: yuan chen yang iii gene we ((than wong) OR (than done)) sau ;~.
• Adding a wildcard symbol may retrieve word variants: yuan chen yang iii gene we ((than wong) or (than done)) sau ;*.