Perhaps you should try some spelling variations:
communication concepts » communication costs, communication channels, communication collection
le developpement » de developpement, sme development
developpement de » developpement des, developpement durable
3 communication » 4 communication, de communication, data communication
technology use » technology 1, technology 2.2, technology 3
use inflation » push inflation, und inflation, die inflation
concepts le » concepts _, concepts 4, concepts 3
rate price » water price, gate prices, ratio price
de afrique » de l'afrique, en afrique, 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 use inflation rate price 3 communication concepts le developpement de afrique.*.