Perhaps you should try some spelling variations:
technologies about » technologies art, technologies bit, technologies box
face communication » voice communication, de communication, time communication
deux developpement » deux developpements, de developpement, du developpement
about information » account information, labor information, about inflation
information costs » information contents, information centers, information content
developpement de » developpement des, developpement durable
de afrique » de l'afrique, en afrique, l afrique
costs 2.3 » costs 4.2, costs 4.4
2.3 face » 2.2 face, 2.3 race, 1.2.3 face

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

• Adding a wildcard symbol may retrieve word variants: technologies about information costs 2.3 face communication _ deux developpement de afrique.*.