Perhaps you should try some spelling variations:
training costs » trading costs, training courses, training course
trading case » trading costs, trade case
trading cost » trading costs, training cost
coping shu » cong shu
dong bin » dong sin, dong di, dann bin
hua bond » a bond, hua ban, un bond
bin ya » bin da, bin ja

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 bin ya hua bond ((trading case) OR (((trading cost) OR (training costs)))) coping shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong bin ya hua bond ((trading case) or (((trading cost) OR (training costs)))) coping shu ;~".
• Adding a wildcard symbol may retrieve word variants: dong bin ya hua bond ((trading case) or (((trading cost) OR (training costs)))) coping shu ;*.