Perhaps you should try some spelling variations:
rating change » creating change, grazing change, making change
yang jie » yang jin, yang di, yang xi
yang jui » yang judy, yang di, yang xi
yang yi » yang di, yang xi
a chen » ta chen, _ chen, n chen
let a » get a, let _, set a
a a » a la
wang » wing, wan, lang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((((wang yan) or (yang jie))) or (((yang jui) or (yang yi))))let a a chen huigang rating change 1 ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((wang yan) OR (yang jie))) OR (((yang jui) OR (yang yi))))let a a chen huigang rating change 1 ;.
• Adding a wildcard symbol may retrieve word variants: ((((wang yan) or (yang jie))) or (((yang jui) or (yang yi))))let a a chen huigang rating change 1 ;*.