Perhaps you should try some spelling variations:
optics communication » optic communication, optical communication, optical communications
le developpement » de developpement, sme development
technologies 1 » technologies _, technologies 4, technologies 2
information 9 » information 2, information 3, information 1
systems le » systems life, systems lens, systems luke
des africa » does africa, yes africa, de africa
11 optics » 1.1 optics, 10 optics, 13 optics

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 information 9 11 optics communication systems le developpement des africa.*.