Perhaps you should try some spelling variations:
changes made » changes a, changes due
yuan chen » yuan cheng, yun chen, sudan chen
wai yuan » wai yan, wei yuan, wai fun
chen wei » zhen wei, chen e
yang jun » yang jui, pang jun, yang jin
yang yi » yang jui
yang xi » yang jui

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: wai yuan chen wei shang ((((((yang yi) OR (yang di))) OR (yang jun))) OR (yang xi)) changes made ;~.
• Adding a wildcard symbol may retrieve word variants: wai yuan chen wei shang ((((((yang yi) or (yang di))) or (yang jun))) or (yang xi)) changes made ;*.