Perhaps you should try some spelling variations:
communication services » telecommunications services
optics communication » optic communication, optical communication, optical communications
et developpement » de developpement, le developpement, test development
developpement de » developpement des, developpement durable
technologies 2 » technologies _, technologies 4
information 1 » information 2, information 3, information 3.2
services et » services 3, services 1, services 2
10 optics » 11 optics, 13 optics, 18 optics
de africa » does africa, de america, use africa
1 10 » _ 10, 1 1, 9 10

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 1 10 optics communication services et developpement de africa.*.