Perhaps you should try some spelling variations:
chuan ming » chan ming, yuan ming
chuan bang » chua beng
wang wang » wang yang, wang liang, wang yan
wang yuan » wang yuhan, wang yan, fang yuan
code ctu » code c, code pt
yuan li » yuan lin, guan li, yuan zi
li chen » yi chen, jui chen

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 yuan li chen ((chuan ming) OR (chuan bang)) ((code shu) OR (code ctu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang wang yuan li chen ((chuan ming) OR (chuan bang)) ((code shu) or (code ctu)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang wang yuan li chen ((chuan ming) OR (chuan bang)) ((code shu) or (code ctu)) ;*.