Perhaps you should try some spelling variations:
ying cheng » yong cheng, ying chen, yang cheng
ling chen » liang chen, ling cheng, ming chen
cheng xu » cheng _
tong shu » nong shu, tang shu, tong siu
yong soo » kyung soo, sung soo
tu ying » wu ying, fu ying, su ying
ji tong » xi tong, ji yong, li tong
yu ling » yu liang, yu ting, yu lin
chen xi » chen xin
xi she » xi shi
bao » bajo

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: (( tu ying cheng xu she ji tong shu ) OR ( yu ling chen xi she ji ((yong soo) OR (yong bao)) )).
• Adding a wildcard symbol may retrieve word variants: (( tu ying cheng xu she ji tong shu ) or ( yu ling chen xi she ji ((yong soo) or (yong bao)) ))*.