Perhaps you should try some spelling variations:
trough communication » through communication, thought communication, touch communication
communication model » communication media
sm developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
integrating a » integrating _, integrating human
model sm » model sbm, model sem, model some
a 1990 » ab 1990, _ 1990, a 1950

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

• Adding a wildcard symbol may retrieve word variants: technology _ integrating a 1990 trough communication model sm developpement en afrique.*.