Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yan » yang yang, wang yan, yang fan
yu cheng » _ cheng
chan eng » chan fong, chan kang, chan ming
chan jan » chain jane, chan alan, chan kang
yu chen » yi chen, yulu chen, jui chen
chung h » chun h, chung _, chung chi
hee » here, chee

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang yan ((yu chen) or (yu cheng)) ((chan eng) or (chan jan)) ((chung h) OR (chung hee)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yan ((yu chen) OR (yu cheng)) ((chan eng) OR (chan jan)) ((chung h) OR (chung hee)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang yan ((yu chen) or (yu cheng)) ((chan eng) or (chan jan)) ((chung h) OR (chung hee)) ;*".