Perhaps you should try some spelling variations:
online communication » mobile communication, business communication, mobile communications
de developpement » sme development
developpement du » developpement de, developpement des, developpement et
2.1 variation » 1.1 variation, 2.2 variation, 2.3 variation
typology 2.1 » typology 4.1, typology 2.2.1, typology 4.2.1
variation 6 » variation _, variations _, variation des
du afrique » en afrique, l afrique, de l'afrique
6 fahrers » 6 fathers
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: typology 2.1 variation 6 fahrers online communication a de developpement du afrique.*.