Perhaps you should try some spelling variations:
credit training » credit trading, credit rationing, credit rating
training costs » trading costs, training courses, training course
costs hong » costs along, costs among, costs how
wang yong » wang yang, wang hyoung, wang yan
maya idea » main idea
dong bin » dong sin, dong di, dann bin
hong shu » cong shu, tong shui, wong shiu

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) or (wang yong)) ((ya idea) OR (maya idea)) credit training costs hong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong bin) OR (wang yong)) ((ya idea) OR (maya idea)) credit training costs hong shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong bin) or (wang yong)) ((ya idea) OR (maya idea)) credit training costs hong shu ;*".