Perhaps you should try some spelling variations:
rating scale » basin scale
rating case » trading case, making case, banking case
dong yang » dong hoang, wang yang, yang yang
dong nan » dong sin, dong bin, dong cao
a credit » _ credit, tax credit, bad credit
hong shu » hong seo, hong yu, hong ghi
ya a » a a, ka a

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong nan) or (dong yang)) ya a credit ((rating case) OR (rating scale)) hong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong nan) OR (dong yang)) ya a credit ((rating case) OR (rating scale)) hong shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong nan) or (dong yang)) ya a credit ((rating case) OR (rating scale)) hong shu ;*".