Perhaps you should try some spelling variations:
planning courses » training courses, planning uses, planning congresses
risk planning » crisis planning, cost planning, dose planning
courses jan » course can, courses a, courses wayne
wang yang » wang yan, wang liang, wang yanling
long tan » hong tan, long han, long thanh
jan jong » nam jong
dong di » dong sin

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((wang yang) or (long tan))) or (dong di)) ((a a) OR (a la)) risk planning courses jan jong ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((wang yang) OR (long tan))) OR (dong di)) ((a a) OR (a la)) risk planning courses jan jong ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((wang yang) or (long tan))) or (dong di)) ((a a) OR (a la)) risk planning courses jan jong ;*".