Perhaps you should try some spelling variations:
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
from integration » roma integration, from immigration, from international
integration work » integrating world, integration framework, integration 3
developpement la » developpement de, developpement et, developpement du
a developpement » au developpement, de developpement, le developpement
work trade » pork trade, world trade, work travel
la afrique » l afrique, la fabrique, en afrique
trade 4.1 » trade 2.2, trade 3.2
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 from integration work trade 4.1 communication costs a developpement la afrique.*.