Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
study population » student population, student populations, city population
developpement et » developpement des, developpement de, development east
population area » population age, population africa, population share
4 developpement » de developpement, le developpement, et developpement
france 3.2 » france 2.2, france 3.3, france 4.2
et afrique » en afrique, l afrique
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology study population area france 3.2 communication costs 4 developpement et afrique.*.