Perhaps you should try some spelling variations:
credit training » credit trading, credit rationing, credit rating
training cost » training costs, training course, training courses
hua credit » dual credit, a credit, du credit
dong bin » dong sin, dong di, dann bin
bin ya » bin da, bin ja
cong » congo, long, hong

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong bin ya hua credit training cost cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: dong bin ya hua credit training cost cong shu ;*.