Perhaps you should try some spelling variations:
study confirmation » side confirmation, de confirmation, equal confirmation
3.2 communication » 3 communication, 2.3 communication, de communication
du developpement » de developpement, le developpement, et developpement
confirmation 2 » confirmation _, confirmation 3, confirmation 9
des afrique » en afrique, de l'afrique
fact 3.2 » facts 3.2, act 3.2, fact 3.4
costs du » costs _, costs 4, costs a
2 fact » 2 facts, _ fact, a fact

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

• Adding a wildcard symbol may retrieve word variants: technology study confirmation 2 fact 3.2 communication costs du developpement des afrique.*.