Perhaps you should try some spelling variations:
communication costo » communication costs, communication costa, communications costs
2.3 communication » 3.2 communication, de communication, 4 communication
del developpement » de developpement, des developpements, le developpement
developpement du » developpement de, developpement des, developpement et
die integration » trade integration
technology die » technologie die, technology does, technology 4ir
integration 4 » integration 3
du afrique » en afrique, l afrique, de l'afrique
trade 2.3 » trade 2.2, trade 2.1, trade 1.3
costo del » costa del, cose del, costo e
4 trade » 1 trade

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

• Adding a wildcard symbol may retrieve word variants: technology die integration 4 trade 2.3 communication costo del developpement du afrique.*.