Perhaps you should try some spelling variations:
young john » kong john, young jean
guan huan » quan guan, tuan hua
zhang kim » kang kim, zhang i, zhang ii
zhang xin » zhang jian, zhang ming, zhang fan
wong john » wrong john, kong john, longo john
wang gan » wang yan, wang ban, wang dan
gan guan » yan guan, quan guan, fan guon
huan li » guan li, yuan li, huang lin

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 gan guan huan li ((zhang kim) OR (zhang xin)) ((young john) OR (wong john)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang gan guan huan li ((zhang kim) OR (zhang xin)) ((young john) or (wong john)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang gan guan huan li ((zhang kim) OR (zhang xin)) ((young john) or (wong john)) ;*.