Perhaps you should try some spelling variations:
huang juan » jiang juan
young john » kong john, young jean
yan huang » yang guang, yan guan, yan liang
jie zhang » li zhang, bin zhang, xi zhang
jia zhang » jia zhangke, xiao zhang, li zhang
wong john » wrong john, kong john, longo john
wang » wing, wan, lang

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