Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
population facts » population data, population action, population family
technology set » technology sector, technology 1, technology 2.2
set population » meet population, de population, em population
facts prices » factor prices, facts process, gas prices
4 developing » 3 developing
developing a » developing _
prices 3.2 » price 3.2, prices 3.1, prices 4.2
a afrique » 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 set population facts prices 3.2 communication costs 4 developing a afrique.*.