Perhaps you should try some spelling variations:
oral communication » personal communication
technologies care » technologies case, technologies art, technologies can
care information » more information, change information, trade information
information 5.2 » information 15.2, information 1.2, information 5.4
a developpement » au developpement, de developpement, le developpement
des afrique » en afrique, de l'afrique
do oral » do rural, who oral
a a » a la

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

• Adding a wildcard symbol may retrieve word variants: technologies care information 5.2 do oral communication a a developpement des afrique.*.