Perhaps you should try some spelling variations:
young john » kong john, young jean
binh thang » binh thanh, binh thuan, binh tran
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
yang huan » yang guang, wang hua, yang dean
bin zhang » li zhang, jia zhang, jie zhang
wong john » wrong john, kong john, longo john

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