Perhaps you should try some spelling variations:
face communication » voice communication, de communication, time communication
technologies dans » technologies can, technologies any, technologies daf
information needs » information networks
dans information » dns information, dis information, does information
de developpement » sme development
developpement de » developpement des, developpement durable
de afrique » de l'afrique, en afrique, l afrique
needs 2.3 » needs 4.3, needs 2.5, needs 2.8
2.3 face » 2.2 face, 2.3 race, 1.2.3 face
a de » a die, a der, a des

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies dans information needs 2.3 face communication a de developpement de afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies dans information needs 2.3 face communication a de developpement de afrique.*.