Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
wang yang » wang yan, wang liang, wang yanling
tuan hua » tuan vu, yuan hui
yang thi » dang thi, yang chik, yang di
thi hong » tan hong
hong sau » wong sau, hong paul, kong sar
tan hua » wang hua, tan chia, tan puay

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yuhan) or (wang yang)) ((tan hua) OR (tuan hua)) best yang thi hong sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yuhan) OR (wang yang)) ((tan hua) OR (tuan hua)) best yang thi hong sau ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yuhan) or (wang yang)) ((tan hua) OR (tuan hua)) best yang thi hong sau ;*".