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
law developpement » le developpement, au developpement, leur developpement
developpement en » developpement et, developpement des, developpement de
3.1 integrating » 3.2 integrating, 3.3 integrating, 3.6 integrating
technology 3.1 » technology 1, technology 2.2, technology _
6 mobile » _ mobile, a mobile, 2 mobile
world 6 » world _, world a, world 1

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

• Adding a wildcard symbol may retrieve word variants: technology 3.1 integrating world 6 mobile communications model law developpement en afrique.*.