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
4 developpement » de developpement, le developpement, et developpement
work trade » pork trade, world trade, work travel
trade 4.1 » trade 2.2, trade 3.2
costs 4 » costs _, costs a, costs 4.2
fabrique. » afrique., fabrice.

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 4 developpement la fabrique.*.