Perhaps you should try some spelling variations:
communication costo » communication costs, communication costa, communications costs
trade information » price information, private information, trade integration
del developpement » de developpement, des developpements, le developpement
technology trade » technology trends, technology transfer, technology transfers
information when » information what, information war, information wants
3 communication » 4 communication, de communication, data communication
des afrique » en afrique, de l'afrique
when base » when bad, when face, when have
costo del » costa del, cose del, costo e
base 3 » base _, case 3, base 4

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

• Adding a wildcard symbol may retrieve word variants: technology trade information when base 3 communication costo del developpement des afrique.*.