Perhaps you should try some spelling variations:
7.1 communication » 4.1 communication, 1.1 communication, 3.1 communication
developpement en » developpement et, developpement des, developpement de
a developpement » au developpement, de developpement, le developpement
technology law » technology 1, technology 2.2, technology 3
law population » low population, slow population, new population
data case » data base, data based
case 7.1 » cases 7.1, case 4.1, case 3.1
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology law population data case 7.1 communication costs a developpement en afrique.*.