Perhaps you should try some spelling variations:
rating change » creating change, grazing change, making change
yulan rating » flat rating
chen yulan » chen yugang, chen yulu, chen yun
wang liang » wang yang
yang jin » yang jie, yang jun, ying jin
change c » change 1, change 2, change 10
yang xi » yang di, yang jui
yang yi » yang di, yang jui
a chen » ta chen, _ chen, n chen
leg a » lee a, leg _, let a
a a » a la

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((wang liang) or (yang jin))) or (((yang xi) or (yang yi))))leg a a chen yulan rating change c ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((wang liang) OR (yang jin))) OR (((yang xi) OR (yang yi))))leg a a chen yulan rating change c ;.
• Adding a wildcard symbol may retrieve word variants: ((((wang liang) or (yang jin))) or (((yang xi) or (yang yi))))leg a a chen yulan rating change c ;*.