Perhaps you should try some spelling variations:
young john » kong john, wong john, young jean
chen young » chen yong, chen yang, chen chung
john kong » john king, john song, john wong
yang jui » yang judy, yang di, yang xi
yang yi » yang di, yang xi
wang » wan, lang
sar » sara, star, saur

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

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