Perhaps you should try some spelling variations:
training visit » training crisis, training asia, training vet
training cost » training costs, training course, training courses
equal credit » dual credit, equity credit, rural credit
y equal » _ equal, 6 equal, e equals
yan y » yang y, yan _, yan 4
wang » wing, wan, lang
cong » congo, long, hong

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan y equal credit ((training visit) OR (training cost)) cong shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan y equal credit ((training visit) OR (training cost)) cong shu ;*.