Perhaps you should try some spelling variations:
chuan ming » chan ming, chuan bang, yuan ming
wang wang » wang yang, wang liang, wang yan
wang guan » wang xuan, wang yuhan, yang guang
code shu » code ctu
guan li » gan li, yuan li, yuan lin
li chen » yi chen, jui chen
code c » code _, code 2, code a

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: wang wang guan li chen chuan ming ((code shu) OR (code c)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang wang guan li chen chuan ming ((code shu) or (code c)) ;*.