Perhaps you should try some spelling variations:
sung myung » song byung
song chong » ong chong, hong hong, hong cheng
ying yang » yang yang, yin yang, ying chang
wan ying » fan ying, ran ying, tan ying
yang der » gang der, yang dean, klang der
der best » der besitz
best kim » best time, best fit, test kit

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan ying yang der best kim ((song chong) or (sung myung)) suk ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan ying yang der best kim ((song chong) OR (sung myung)) suk ;.
• Adding a wildcard symbol may retrieve word variants: wan ying yang der best kim ((song chong) or (sung myung)) suk ;*.