Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
communication can » communication canada, communication china, communication 3
eu developpement » et developpement, du developpement, au developpement
population rate » population data, population age, population case
developpement l » developpement il, developpement la, developpement de
technology gap » technology 1, technology 2.2, technology 3
gap population » farm population, fast population, boar population
l afrique » en afrique
cile 3.2 » cile 1.2, cile 3.3, chile 3.1

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

• Adding a wildcard symbol may retrieve word variants: technology gap population rate cile 3.2 communication can eu developpement l afrique.*.