Perhaps you should try some spelling variations:
optics communication » optic communication, optical communication, optical communications
information mary » information many, information mart, information summary
developpement de » developpement des, developpement durable
a developpement » au developpement, de developpement, le developpement
technologies 1 » technologies _, technologies 4, technologies 2
11 optics » 1.1 optics, 10 optics, 13 optics
de africa » does africa, de america, use africa
mary 11 » may 11, mary 1951, mary 1910
systems » system

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

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