Perhaps you should try some spelling variations:
developpement du » developpement de, developpement des, developpement et
technology slow » technology flow, technology low, technology soc
slow population » low population, slower population, slum population
population case » population based, population age, population change
3 communication » 4 communication, de communication, data communication
a developpement » au developpement, de developpement, le developpement
case price » cause price, base price, base prices
du afrique » en afrique, l afrique, de l'afrique
price 3 » price _, price a, price 2.3
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 slow population case price 3 communication costs a developpement du afrique.*.