Perhaps you should try some spelling variations:
voice communications » mobile communications, guinea communications, online communications
communications costs » communication costs, communications _
au developpement » du developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
ii information » i information, 2 information, 1 information
technology ii » technology ict, technology 1, technology 3
information 1 » information 2, information 3, information 3.2
de afrique » de l'afrique, en afrique, l afrique
das voice » das choice, a voice
costs au » costs a, costs amy, costs _

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

• Adding a wildcard symbol may retrieve word variants: technology ii information 1 das voice communications costs au developpement de afrique.*.