Perhaps you should try some spelling variations:
retaining valued » rethinking values, obtaining value, refining values
credit retaining » credit rationing, credit training, credit rating
equal credit » dual credit, equity credit, rural credit
valued cong » values coding, valued stone, values among
yang yang » wang yang, wang yan
a equal » _ equal, 6 equal, can equal

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(((dong OR doing) sin) OR (yang yang)) a equal credit retaining valued cong shu ;~".
• Adding a wildcard symbol may retrieve word variants: (((dong OR doing) sin) OR (yang yang)) a equal credit retaining valued cong shu ;*.