Perhaps you should try some spelling variations:
training coursess » training course, training sources, training costs
courses policies » curse policies, discourses policies, countries policies
coursess studies » course studies, tourism studies, cases studies
3.3 training » 4 training
e training » re training, 4 training, 2 training

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: (( e training courses policies. ) OR ( 3.3 training coursess studies. ))~.
• Adding a wildcard symbol may retrieve word variants: (( e training courses policies. ) or ( 3.3 training coursess studies. ))*.