Perhaps you should try some spelling variations:
chang yang » chen yang, wang yang, zhang yan
yuan chang » yuan cheng, huang chang, han chang
yang hong » wang hong, yang hongli, quang hong
das clan » das bilan, das land, das cern
yan clan » yan guan, yan yuan
nan yuan » nan yan, yan yuan, fang yuan
hong il » jong il, hyoung il, honig ii

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 clan)) nan yuan chang yang hong il ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: twinn ((das clan) OR (yan clan)) nan yuan chang yang hong il ;.
• Adding a wildcard symbol may retrieve word variants: twinn ((das clan) or (yan clan)) nan yuan chang yang hong il ;*.