Perhaps you should try some spelling variations:
yan zhang » yuan chang, bin zhang, han chang
zhang wei » zhen wei
yang hui » yang muxi, zhang hui, yang di
yang jui » yang judy, yang di, yang xi
ying hua » ming hua, wang hua, ying zhu
wang hui » wang hua, wang zhi, wang wei
rene gen » rene ten, gene gene
yang yi » yang di, yang xi
gen yan » ren yan

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: yang yi ((((((yang hui) OR (yang jui))) OR (ying hua))) OR (wang hui)) rene gen yan zhang wei ;~.
• Adding a wildcard symbol may retrieve word variants: yang yi ((((((yang hui) or (yang jui))) or (ying hua))) or (wang hui)) rene gen yan zhang wei ;*.