Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
ahsan syed » khan syed
hong cheng » hong sheng, ong cheng, zong cheng
yuhan kai » yuan kai
chew hong » chew fong, how hong
cheng hee » chung hee, chang hee, cheng hei
than she » khan sher, than one, than we

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 kai ((than she) or (ahsan syed)) chew hong cheng hee ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuhan kai ((than she) OR (ahsan syed)) chew hong cheng hee ;*.