Perhaps you should try some spelling variations:
communication model » communication media
voice communication » voice communications, mobile communication, device communication
integrating area » integrating a, integrating new, integrating data
au developpement » du developpement, de developpement, le developpement
3 integrating » _ integrating, 4 integrating, 6 integrating
technology 3 » technology _, technology 1, technology 4
des afrique » en afrique, de l'afrique
model au » modele au, model a, model aa
7 voice » _ voice, a voice, 5 voice
area 7 » area _, area 5, area a

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

• Adding a wildcard symbol may retrieve word variants: technology 3 integrating area 7 voice communication model au developpement des afrique.*.