Perhaps you should try some spelling variations:
changes made » changes a, changes due
zhang wei » zhen wei
xi zhang » li zhang, xiao zhang, bin zhang
wei chen » wei shen, frei chen, jui chen
yang jun » pang jun, yang jin, yang judy
yang jui » yang judy, yang di
yang xi » yang di
yang yi » yang di
tan xi » tan xin, tan li, tan yi

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: tan xi zhang wei chen ((yang jun) OR (((((yang jui) OR (yang xi))) OR (yang yi)))) changes made ;~.
• Adding a wildcard symbol may retrieve word variants: tan xi zhang wei chen ((yang jun) or (((((yang jui) or (yang xi))) or (yang yi)))) changes made ;*.