Perhaps you should try some spelling variations:
communication skills » communication services, communication systems
optic communication » optical communications, public communication, device communication
developpement yes » developpement des, developpement de, developpement et
do developpement » de developpement, du developpement, le developpement
information 1.2 » information 1.5.2, information 2
yes africa » em africa, cycles africa, rates africa
skills do » skills how, skills _, skills a
14 optic » 14 optical, 10 optics, 11 optics
1.2 14 » 1.2 1.4, 4.2 14

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information 1.2 14 optic communication skills do developpement yes africa.*.