Perhaps you should try some spelling variations:
changes made » changes a, changes due
been changes » been changed, between changes, sweden changes
tang zheng » wang zheng, fang sheng, fang zhen
wang yidan » wang yan
made wang » made can, made man, made sand
jing ta » jing jia
ta been » taxa been, has been, had been

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: ((tang zheng) OR (wang yidan)) jing ta been changes made wang zhi ;~.
• Adding a wildcard symbol may retrieve word variants: ((tang zheng) or (wang yidan)) jing ta been changes made wang zhi ;*.