Perhaps you should try some spelling variations:
credit training » credit trading, credit rationing, credit rating
training value » trading value, obtaining value, driving value
wang liang » wang yang
ida credit » ida credits, a credit, de credit
value cong » value co, value closing, value change
yang yang » wang yang, wang yan

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 yang)) ya ida credit training value cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang liang) OR (yang yang)) ya ida credit training value cong shu ;*.