Perhaps you should try some spelling variations:
young john » kong john, wong john
yang guang » yan guan, yang liang
young jean » young men, young eun, young man
yang yang » wang yang, wang yan
jie zhang » jia zhang, li zhang, bin zhang
zhang kim » zhang xin, kang kim, zhang i
hua jie » huan jie

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 guang) OR (yang yang)) hua jie zhang kim ((young john) OR (young jean)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yang guang) or (yang yang)) hua jie zhang kim ((young john) OR (young jean)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yang guang) or (yang yang)) hua jie zhang kim ((young john) OR (young jean)) ;*.