Perhaps you should try some spelling variations:
2.3 communication » 3.2 communication, de communication, 4 communication
4.2 developpement » 4.2 development, de developpement, le developpement
technology rural » technology moral, technology neutral, technology road
developpement de » developpement des, developpement durable
population a » population _, population 1, population 3
de afrique » de l'afrique, en afrique, l afrique
rate 2.3 » rates 2.3, rate 2.4, rate 4.3
a rate » a race, a rare, 3 rate

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

• Adding a wildcard symbol may retrieve word variants: technology rural population a rate 2.3 communication costs 4.2 developpement de afrique.*.