Perhaps you should try some spelling variations:
li cheng » lai cheng, li chen, li sheng
song shu » nong shu, song shi, tong shu
yong soo » kyung soo, yong bao
ji song » li song, ii song, mei song
chen xi » chen xin
ji yong » jim yong, ji young, li yong
chen x » chen _, chen a, chen 9
yu li » cu li

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: (( yu li cheng _ she ji song shu ) OR ( tu king ((chen x) OR (chen xi)) she ji yong soo )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( yu li cheng _ she ji song shu ) or ( tu king ((chen x) OR (chen xi)) she ji yong soo ))".
• Adding a wildcard symbol may retrieve word variants: (( yu li cheng _ she ji song shu ) or ( tu king ((chen x) OR (chen xi)) she ji yong soo ))*.