Perhaps you should try some spelling variations:
4.2 developpement » 4.2 development, de developpement, le developpement
developpement du » developpement de, developpement des, developpement et
technology slow » technology flow, technology low, technology soc
slow population » low population, slower population, slum population
3 communication » 4 communication, de communication, data communication
density price » density profile, equity price, density while
du afrique » en afrique, l afrique, de l'afrique
price 3 » price _, price a, price 2.3

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

• Adding a wildcard symbol may retrieve word variants: technology slow population density price 3 communication costs 4.2 developpement du afrique.*.