Perhaps you should try some spelling variations:
yang july » yang judy, yang jui, yang jun
wang yang » wang yan, wang liang
kong hang » kong heng, kong hong, kong land
yan yuan » yan guan, fang yuan, nan yan
yuan kai » yuan kang, yuan fei, tan kai
kai yang » kai fang, yao yang, dan yang
kang hay » eang hay, kang han, dang hai

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 yang) OR (wang yanling)) yan yuan kai yang july ((kang hay) OR (kong hang)) ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang yang) or (wang yanling)) yan yuan kai yang july ((kang hay) or (kong hang)) ;*.