Perhaps you should try some spelling variations:
communications networks » communication networks, telecommunications networks, telecommunications network
du developpement » de developpement, le developpement, et developpement
developpement il » developpement de, developpement et, developpement du
4 information » 2 information, 1 information
information 3 » information 2
technology 4 » technology _, technology 1, technology 3
networks du » networks _, networks 1, networks a
il afrique » l afrique, en afrique
3 book » 23 book, e book, 2 book

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

• Adding a wildcard symbol may retrieve word variants: technology 4 information 3 book data communications networks du developpement il afrique.*.