Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
young john » kong john, wong john, young jean
wang wang » wang yang, wang liang, wang yan
yuhan hua » tuan hua, yuan hui, yuhuan huang
hua irene » hua ren
kong saur » kong sar, kong siu, kong your
wong sam » wong sau, kong sar, von sam

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang wang yuhan hua irene young john ((((wong sam) OR (wong lai))) or (kong saur)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang wang yuhan hua irene young john ((((wong sam) OR (wong lai))) OR (kong saur)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang wang yuhan hua irene young john ((((wong sam) OR (wong lai))) or (kong saur)) ;*".