Perhaps you should try some spelling variations:
introduction 20.2 » introduction 2.2, introduction 10.2, introduction 2
de communication » mobile communication, online communication
de developpement » sme development
developpement il » developpement de, developpement et, developpement du
technologies 4 » technologies _
il afrique » l afrique, en afrique
20.2 der » 2.2 der, 10.2 der, 0.2 der
media de » media die, media der, media diet

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 introduction 20.2 der de communication media de developpement il afrique.*.