Perhaps you should try some spelling variations:
2.4 communication » 2.14 communication, 5.4 communication, 2.3 communication
technology hard » technology has, technology have, technology hydro
4 developpement » de developpement, le developpement, et developpement
developpement l » developpement il, developpement la, developpement de
hard inflation » aid inflation, has inflation, hybrid inflation
rate price » water price, gate prices, ratio price
price 2.4 » prices 2.4, price 2.3, price 4.4
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 hard inflation rate price 2.4 communication costs 4 developpement l afrique.*.