Perhaps you should try some spelling variations:
communication services » telecommunications services
oral communication » personal communication
technologies aids » technologies varies, technologies a, technologies de
aids information » chandos information, series information
information need » information needs, information needed, information speed
de development » e development, ce development, de developpement
development co » development case, development china
services de » services 3, services 1, services 2
co afrique » en afrique, l afrique
need de » need le, need fide, need one
de oral » de otras, new oral

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

• Adding a wildcard symbol may retrieve word variants: technologies aids information need de oral communication services de development co afrique.*.