Perhaps you should try some spelling variations:
communication skills » communication services, communication systems
4 transformation » 1 transformation, die transformation, der transformation
transformation a » transformation _
developpement de » developpement des, developpement durable
3 developpement » de developpement, le developpement, et developpement
technologies 4 » technologies _
18.3.1 risk » 16.3.1 risk, 1.2.1 risk, 1.5.1 risk
de african » do african, de africa, me african
a 18.3.1 » a 1.3.1, way 18.3.1, d 8.3.1
skills 3 » skills _, skills a, skills 1

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 transformation a 18.3.1 risk communication skills 3 developpement de african.*.