Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications model » communications models, communication model, communicating model
integrating world » integrated world, integrating area, integrating land
11.2 integrating » 19.2 integrating, 1.3.2 integrating, 5.1.2 integrating
developpement de » developpement des, developpement durable
technology 11.2 » technology 1.2, technology 11.5.2, technology 1.5.2
a developpement » au developpement, de developpement, le developpement
de afrique » de l'afrique, en afrique, l afrique
model a » model 1

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

• Adding a wildcard symbol may retrieve word variants: technology 11.2 integrating world _ mobile communications model a developpement de afrique.*.