Perhaps you should try some spelling variations:
yang john » young john, king john, yang jin
john wong » john song, john bonn
yan yang » yang yang, yao yang, dan yang
yu cheng » _ cheng
wong sau » wong sam, wong siu, wong shiu
yu chen » yi chen, yulu chen, jui chen
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 yang ((yu cheng) OR (yu chen)) yang john wong sau ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan yang ((yu cheng) OR (yu chen)) yang john wong sau ;".
• Adding a wildcard symbol may retrieve word variants: wang yan yang ((yu cheng) OR (yu chen)) yang john wong sau ;*.