Perhaps you should try some spelling variations:
planning courses » training courses, planning uses, planning congresses
risk planning » crisis planning, cost planning, dose planning
courses nam » courses a, courses jan, courses back
long tan » hong tan, long han, long thanh
nam jong » kim jong
dong di » dong sin
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.

• Performing a fuzzy search may retrieve terms with similar spellings: ((((wang yanling) or (long tan))) or (dong di)) ya a risk planning courses nam jong ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((wang yanling) OR (long tan))) OR (dong di)) ya a risk planning courses nam jong ;.
• Adding a wildcard symbol may retrieve word variants: ((((wang yanling) or (long tan))) or (dong di)) ya a risk planning courses nam jong ;*.