Perhaps you should try some spelling variations:
wan hyoung » wang hyoung, man houng, min hyoung
gain ying » jin ying, fan ying, ran ying
john song » john wong, john bonn, john ngosong
yang hui » wang hui, yang muxi, zhang hui
yang jui » yang judy, yang di, yang xi
tan ying » fan ying, ran ying, tan yang
song shu » cong shu, song shin, tong shui

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan hyoung ((yang hui) or (yang jui)) ((gain ying) or (tan ying)) john song shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan hyoung ((yang hui) OR (yang jui)) ((gain ying) OR (tan ying)) john song shu ;.
• Adding a wildcard symbol may retrieve word variants: wan hyoung ((yang hui) or (yang jui)) ((gain ying) or (tan ying)) john song shu ;*.