Perhaps you should try some spelling variations:
trough communication » through communication, thought communication, touch communication
communication model » communication media
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
3.1 integration » 3.3 integration, 4.1 integration, 3.2 integration
technology 3.1 » technology 1, technology 2.2, technology _
model au » modele au, model a, model aa

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

• Adding a wildcard symbol may retrieve word variants: technology 3.1 integration 3 _ trough communication model au developpement en afrique.*.