Perhaps you should try some spelling variations:
yuan chang » yuan cheng, huang chang, han chang
won hyoung » wang hyoung, min hyoung
chang won » chang soon, chang ann, chang min
hyoung il » hong il
das clan » das bilan, das land, das cern
yan guan » gan guan, yang guang, yihan guan
yan yuan » fang yuan, nan yan, yan clan

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

• Performing a fuzzy search may retrieve terms with similar spellings: twinn ((das clan) or (yan guan)) yan yuan chang won hyoung il ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: twinn ((das clan) OR (yan guan)) yan yuan chang won hyoung il ;*.