Perhaps you should try some spelling variations:
oral communication » personal communication
information 17.2 » information 1.2, information 15.2, information 11.2
de developpement » sme development
technologies 2 » technologies _, technologies 4
des afrique » en afrique, de l'afrique
17.2 who » 1.2 who, 11.2 who, 10.2 who
who oral » who deal
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: technologies 2 information 17.2 who oral communication a de developpement des afrique.*.