Perhaps you should try some spelling variations:
wang jane » hwang jane, wang yan, wang yang
jane chen » jean chen, jie chen, kang chen
john song » john wong, john bonn, john ngosong
tan ying » fan ying, ran ying, tan yong
tan yang » dan yang, tan yong, tao yang
jin kong » jin kang, jin song, king kong
chen yu » chen y, chen yulu, cheng lu

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 jane chen yu ((tan ying) OR (tan yang)) ((jin kong) OR (john song)) yam ;~.
• Adding a wildcard symbol may retrieve word variants: wang jane chen yu ((tan ying) or (tan yang)) ((jin kong) or (john song)) yam ;*.