Perhaps you should try some spelling variations:
training visit » training crisis, training asia, training vet
training risk » trading risk, training crisis, defining risk
hua credit » dual credit, a credit, du credit
dong nana » dong nan, dong yang
nana yaa » nan ya, nan yan, nanay a
yaa hua » ya hua

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong nana yaa hua credit ((training risk) or (training visit)) cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong nana yaa hua credit ((training risk) OR (training visit)) cong shu ;.
• Adding a wildcard symbol may retrieve word variants: dong nana yaa hua credit ((training risk) or (training visit)) cong shu ;*.