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 thanh » luong thanh, long han, long trinh
nam jong » kim jong
dong di » dong sin
ya a » a a, y a, ye a
wang » wing, 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 OR wan) yan) or (long thanh))) or (dong di)) ya a risk planning courses nam jong ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((wang OR wan) yan) OR (long thanh))) OR (dong di)) ya a risk planning courses nam jong ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((wang OR wan) yan) or (long thanh))) or (dong di)) ya a risk planning courses nam jong ;".
• Adding a wildcard symbol may retrieve word variants: (((((wang OR wan) yan) or (long thanh))) or (dong di)) ya a risk planning courses nam jong ;*.