Perhaps you should try some spelling variations:
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
developpement la » developpement de, developpement et, developpement du
technology trap » technology trade, technology tax, technology than
trap innovation » trade innovation, track innovation, up innovation
a developpement » au developpement, de developpement, le developpement
la afrique » l afrique, la fabrique, en afrique
model act » model acts, model a, model aa
act 4.1 » act 4.6, act 2.1, act 3.1
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology trap innovation model act 4.1 communication costs a developpement la afrique.*.