Perhaps you should try some spelling variations:
young john » kong john, wong john, young jean
dan young » kang young, a young, jae young
john wong » john song, john bonn
tuan hua » tuan vu, yuan hui
wong sar » kong sar, wong sam, wong sau
tan hua » wang hua, tan chia, tan puay
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan ((tuan hua) or (tan hua)) dan young john wong sar ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan ((tuan hua) OR (tan hua)) dan young john wong sar ;.
• Adding a wildcard symbol may retrieve word variants: wang yan ((tuan hua) or (tan hua)) dan young john wong sar ;*.