Perhaps you should try some spelling variations:
young john » kong john, young jean
guan juan » huang juan, san juan, quan guan
jie zhang » li zhang, bin zhang, xi zhang
jia zhang » jia zhangke, xiao zhang, li zhang
wong john » wrong john, kong john, longo john
yan guan » gan guan, yan yuan, yang guang
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 guan juan ((jie zhang) OR (jia zhang)) xin ((young john) OR (wong john)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan guan juan ((jie zhang) OR (jia zhang)) xin ((young john) or (wong john)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan guan juan ((jie zhang) OR (jia zhang)) xin ((young john) or (wong john)) ;*.