Perhaps you should try some spelling variations:
yihan guan » yan guan
yang guang » yang yang, yan guan, yang liang
juan rene » juan meng, juan rana
juan ran » juan rana, juan ramon, juan a
ying kim » yong kim, hyung kim, ying jin
kim wong » kim song, kie wong, kim dong
wong sam » wong sau, wong lai, kong sar

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yihan guan) or (yang guang)) ((juan ran) OR (juan rene)) ying kim wong sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yihan guan) OR (yang guang)) ((juan ran) OR (juan rene)) ying kim wong sam ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yihan guan) or (yang guang)) ((juan ran) OR (juan rene)) ying kim wong sam ;*".