Perhaps you should try some spelling variations:
optical communication » optical communications, optic communication, political communication
information act » information age, information a, information about
technologies a » technologies _, technologies 4, technologies 2
le development » e development, ce development, le developpement
a information » 2 information, 1 information
development l » development li, development 1, development law
de optical » _ optical, 3 optical, 12 optical
l afrique » en afrique
costs le » costs _, costs 4, costs a
act de » act der, pact de, act does

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

• Adding a wildcard symbol may retrieve word variants: technologies a information act de optical communication costs le development l afrique.*.