Perhaps you should try some spelling variations:
communication model » communication media
good communication » world communication, ihrd communication, based communication
leur developpement » le developpement, deux developpements, de developpement
developpement en » developpement et, developpement des, developpement de
technologies 4 » technologies _
4 information » 2 information, 1 information
model leur » model learn, model led, model linear
das good » das gold, does good, das geld
3.2 das » 1.2 das, 3.2 data

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information 3.2 das good communication model leur developpement en afrique.*.