Perhaps you should try some spelling variations:
training visit » training crisis, training asia, training vet
training cost » training costs, training course, training courses
dual credit » rural credit, deals credit, equal credit
dong yang » dong hoang, wang yang, yang yang
yang y » yang yi, yang _, yang 8
y dual » _ dual, a dual, 3 dual
cong » congo, long, hong

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

• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang y dual credit ((training visit) OR (training cost)) cong shu ;~.
• Adding a wildcard symbol may retrieve word variants: dong yang y dual credit ((training visit) or (training cost)) cong shu ;*.