Perhaps you should try some spelling variations:
des developpements » deux developpements, de developpement, et developpements
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
developpements l » developpements de, developpement il, developpement la
integration das » integration des, integration der, integration 3
das trade » gas trade, tas trade, has trade
trade 4.1 » trade 2.2, trade 3.2
costs des » costs fees
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology _ integration das trade 4.1 communication costs des developpements l afrique.*.