Perhaps you should try some spelling variations:
optic communication » optical communications, public communication, device communication
der developpements » des developpements, deux developpements, de developpement
developpements de » developpement de, developpement des, developpement du
technologies co » technologies _, technologies 4, technologies 2
co information » do information, 2 information, 1 information
information pt » information part, information 1, information 1.2
de africa » does africa, de america, use africa
10 optic » 10 optics, 11 optics, 13 optics
pt 10 » pt 1
systems » system

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

• Adding a wildcard symbol may retrieve word variants: technologies co information pt 10 optic communication systems der developpements de africa.*.