Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
aided communications » wired communications, speed communications, guinea communications
information 18.2 » information 1.2, information 15.2, information 11.2
developpement de » developpement des, developpement durable
3 information » 1 information
technology 3 » technology _, technology 1, technology 4
does aided » does aid, does add
de afrique » de l'afrique, en afrique, l afrique
18.2 does » 13.2 does, 18.3 does, 12 does

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

• Adding a wildcard symbol may retrieve word variants: technology 3 information 18.2 does aided communications costs _ developpement de afrique.*.