Perhaps you should try some spelling variations:
time communication » de communication, mobile communication, online communication
users information » user information, museums information, series information
information needs » information networks
das developpement » des developpements, de developpement, du developpement
technology users » technology use, technology series, technology transfers
communication 5 » communication _, communication a, communication 3
des afrique » en afrique, de l'afrique
needs 6.5 » needs 4.5, needs 2.5, needs 8.5
6.5 time » 5.5 time, 6.5 die
5 das » 1 das, 2 das, 3 das

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

• Adding a wildcard symbol may retrieve word variants: technology users information needs 6.5 time communication 5 das developpement des afrique.*.