Perhaps you should try some spelling variations:
communication 5.5 » communication 3.3, communication 2.4, communication 3.2
des developpement » des developpements, de developpement, le developpement
developpement de » developpement des, developpement durable
1 communication » 10 communication, 3 communication, 4 communication
de afrique » de l'afrique, en afrique, l afrique
about e » about _, about a, about 2
5.5 des » 5.5 das, 5.5 der, 5.5 deep

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information about e 1 communication 5.5 des developpement de afrique.*.