Perhaps you should try some spelling variations:
training course » training courses
equal credit » dual credit, equity credit, rural credit
trading case » trading costs, trade case
wang jiang » wang liang, wang jing, wang yang
tong shui » tong hui, cong shu, gong hui
jiang 29 » jiang _, jiang ke, jiang ye
29 equal » 2.3 equal, _ equal, 6 equal

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: wang jiang 29 equal credit ((trading case) OR (training course)) tong shui ;~.
• Adding a wildcard symbol may retrieve word variants: wang jiang 29 equal credit ((trading case) or (training course)) tong shui ;*.