Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
information based » information case, information bank, transformation based
developpement de » developpement des, developpement durable
4 developpement » de developpement, le developpement, et developpement
technologies 2 » technologies _, technologies 4
de afrique » de l'afrique, en afrique, l afrique
based e » based new
costs 4 » costs _, costs a, costs 4.2
e data » e datas, age data, cge data

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information based e data communications costs 4 developpement de afrique.*.