Perhaps you should try some spelling variations:
oral communication » personal communication
4 developpement » de developpement, le developpement, et developpement
information 2 » information 3
des afrique » en afrique, de l'afrique
des oral » des moral, des oil, des orts
costs 4 » costs _, costs a, costs 4.2
2 des » 2 der, 2 das, a des

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

• Adding a wildcard symbol may retrieve word variants: technology _ information 2 des oral communication costs 4 developpement des afrique.*.