Perhaps you should try some spelling variations:
communications model » communications models, communication model, communicating model
rica communications » africa communications, risk communications, rural communications
leur developpement » le developpement, deux developpements, de developpement
developpement de » developpement des, developpement durable
4ir integration » zur integration, der integration, 4 integration
technology 4ir » technology 4, technology 4.1, technology 4.2
model leur » model learn, model led, model linear
de afrique » de l'afrique, en afrique, l afrique
3 rica » 3 rice, 3 lirica

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

• Adding a wildcard symbol may retrieve word variants: technology 4ir integration 3 3 rica communications model leur developpement de afrique.*.