Perhaps you should try some spelling variations:
chang ch'un » chang chen, chang chuan, chang hsun
when adding » why adding, when handling, when adapting
chung hsuan » chung chuan, chang hsun, hung hsun
zhang jing » zhang ming, zhang jin, zhang ping
gang data » ring data
data base » data based
yang yi » yang di, yang xi, yang jui
yi gang » ii gang, i gang, li gang

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: yang yi gang data base ((when adding) OR (zhang jing)) ((chang ch'un) OR (chung hsuan)) ;~.
• Adding a wildcard symbol may retrieve word variants: yang yi gang data base ((when adding) or (zhang jing)) ((chang ch'un) or (chung hsuan)) ;*.