Perhaps you should try some spelling variations:
sung myung » song byung
ying chang » jin chang, yi chang, yin hang
wang ying » wang yong, wang jing, wang ning
chang yun » chong yun, chang hsun, chae yun
song yang » dong yang, song byung, yang yang
wang yang » wang yan, wang liang, wang yanling
kang hay » eang hay, kang han, dang hai

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 ying chang yun ((((song yang) OR (wang yang))) OR (sung myung)) judy kang hay ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ying chang yun ((((song yang) OR (wang yang))) or (sung myung)) judy kang hay ;~".
• Adding a wildcard symbol may retrieve word variants: wang ying chang yun ((((song yang) OR (wang yang))) or (sung myung)) judy kang hay ;*.