Perhaps you should try some spelling variations:
information search » information sharing, information service, information sources
das developpement » des developpements, de developpement, du developpement
developpement il » developpement de, developpement et, developpement du
4 communication » 3 communication, 5.4 communication, de communication
communication 3 » communication _, communication a
search dem » search term, search terms, search model
il afrique » l afrique, en afrique
dem 4 » dem _, dem 2, dem 1
3 das » 1 das, 2 das

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information search dem 4 communication 3 das developpement il afrique.*.