Perhaps you should try some spelling variations:
wang shiyong » wang hyoung
yihan guan » yan guan
yang guang » yang yang, yan guan, yang liang
tan yang » tan ying, tan yong, tao yang
dan yang » daun yang, wang yang, yang yang
jui dang » duc dang, jui meng, oui dans
hai » hadi, haji, hari

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 shiyong ((yihan guan) OR (yang guang)) ((tan yang) OR (dan yang)) jui dang hai ;~.
• Adding a wildcard symbol may retrieve word variants: wang shiyong ((yihan guan) or (yang guang)) ((tan yang) or (dan yang)) jui dang hai ;*.