Perhaps you should try some spelling variations:
optical communication » optical communications, optic communication, political communication
communication skills » communication services, communication systems
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 optical » 12 optical, 14 optical, 1.13 optical
de africa » does africa, de america, use africa
skills a » skills _, skills gap
mary 11 » may 11, mary 1951, mary 1910

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 optical communication skills a developpement de africa.*.