Perhaps you should try some spelling variations:
training course » training courses
training visit » training cost, training test
dual credit » rural credit, equal credit, rural credits
wang yang » wang yan, wang liang, wang yanling
hong shu » hong seo, hong yu, hong ghi
yang y » yang yi, yang d, yang y.c
y dual » _ dual, a dual

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang y dual credit ((training visit) or (training course)) hong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang y dual credit ((training visit) OR (training course)) hong shu ;*.