Perhaps you should try some spelling variations:
china chen » china shen, china china, china chang
chen yang » chen rong
yang hyun » yang yun, yang jun, sang hyup
hyun song » yun song, kyu song
song sein » song shin, song jin, song min
tan tuan » tan tan, anh tuan, man tun
can turn » can return, a turn, ein turn

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

• Performing a fuzzy search may retrieve terms with similar spellings: long ((tan tuan) or (can turn)) china chen yang hyun song sein ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: long ((tan tuan) OR (can turn)) china chen yang hyun song sein ;.
• Adding a wildcard symbol may retrieve word variants: long ((tan tuan) or (can turn)) china chen yang hyun song sein ;*.