Perhaps you should try some spelling variations:
training cost » training costs, training course, training courses
risk training » risk taking, bank training, risk planning
cost hong » cost housing
dong bin » dong sin, dong di, dann bin
hong ng » hong kong, hong jong, hong hong
ya a » a a, y a, ye a
wang » wing, wan, lang

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 yan) OR (dong bin)) ya a risk training cost hong ng ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang yan) or (dong bin)) ya a risk training cost hong ng ;*.