Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
technology world » technology work, technological world, technology working
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
population tb » population b, population _, population 1
prices 3.2 » price 3.2, prices 3.1, prices 4.2
tb prices » do prices, 2 prices
l afrique » en 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 world population tb prices 3.2 communication costs 4 developpement l afrique.*.