Perhaps you should try some spelling variations:
information problems » information providers, information systems, information policy
scales communication » scale communication, states communications, called communication
der developpements » des developpements, deux developpements, de developpement
developpements de » developpement de, developpement des, developpement du
communication 5 » communication _, communication a, communication 3
problems 12 » problems 1.2, problems 1, problems 2
de afrique » de l'afrique, en afrique, l afrique
12 scales » 2 scales, _ scales, 2 scale
5 der » _ der, 2 der, 3 der

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information problems 12 scales communication 5 der developpements de afrique.*.