Perhaps you should try some spelling variations:
communication systeme » communication systems, communication system, commusnication systems
des developpement » des developpements, de developpement, le developpement
1 transformation » 4 transformation, die transformation, der transformation
transformation a » transformation _
developpement de » developpement des, developpement durable
technologies 1 » technologies _, technologies 4, technologies 2
systeme des » systeme der, system des, systeme de
de african » do african, de africa, me african
6.2 risk » 2.2 risk, 4.2 risk, 3.2 risk
a 6.2 » a 3.2, a 4.2, a 6.1

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 transformation a 6.2 risk communication systeme des developpement de african.*.