Perhaps you should try some spelling variations:
yihan guan » yan guan
yang guang » yang yang, yan guan, yang liang
gain yang » dan yang, tan yang, yin yang
daun yang » dan yang, du yang, tan yang
kang hay » eang hay, kang han, dang hai
wu kang » wu guang
wang » wing, wan, lang
hyoung » young, hyong, kyoung

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang hyoung ((yihan guan) OR (yang guang)) ((gain yang) OR (daun yang)) wu kang hay ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang hyoung ((yihan guan) or (yang guang)) ((gain yang) OR (daun yang)) wu kang hay ;~".
• Adding a wildcard symbol may retrieve word variants: wang hyoung ((yihan guan) or (yang guang)) ((gain yang) OR (daun yang)) wu kang hay ;*.