Perhaps you should try some spelling variations:
training test » training team, training type
trading case » trading costs, trade case
dong yang » dong hoang, wang yang, yang yang
a credit » bad credit
yang ya » yang yao, yang yi, yang ka
hong yu » wong yue
ya a » a a, y a, ye a

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong yang ya a credit ((trading case) or (training test)) hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang ya a credit ((trading case) OR (training test)) hong yu ;.
• Adding a wildcard symbol may retrieve word variants: dong yang ya a credit ((trading case) or (training test)) hong yu ;*.