Perhaps you should try some spelling variations:
communication model » communication media
development effect » development efforts, development project, development east
information need » information needs, information needed, information speed
de communication » mobile communication, online communication
technologies 1 » technologies _, technologies 4, technologies 2
ii development » wbi development, 2 development, 3 development
need one » need more, need only
model ii » modell ii, model iii, model i
one de » one die, one do, one demo

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 information need one de communication model ii development effect afrique.*.