Perhaps you should try some spelling variations:
communication series » communication services, communication systems, communication skills
transformation a » transformation _
et developpement » de developpement, le developpement, test development
developpement en » developpement et, developpement des, developpement de
en african » new african, pan african, _ african
series et » series e, series new, series ein
3.1 risk » 13.1 risk, 3.1 risks, 2.1 risk
a 3.1 » _ 3.1, a 3.2, a 3.3

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

• Adding a wildcard symbol may retrieve word variants: technologies _ transformation a 3.1 risk communication series et developpement en african.*.