Perhaps you should try some spelling variations:
models communication » modern communication, modeling communication, modern communications
le developpement » de developpement, sme development
study selecting » study selection, study meeting, study reflections
selecting a » selecting _
des afrique » en afrique, de l'afrique
costs le » costs _, costs 4, costs a
a based » a biased, na based, a base

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

• Adding a wildcard symbol may retrieve word variants: technology study selecting a based models communication costs le developpement des afrique.*.