Perhaps you should try some spelling variations:
communication 3.2 » communication 3.3, communication 3.4, communication 2
information costs » information contents, information centers, information content
der developpement » de developpement, des developpements, leur developpement
dc communication » de communication, ec communication, atc communication
developpement en » developpement et, developpement des, developpement de
technologies 4 » technologies _
4 information » 2 information, 1 information
costs over » costs other, contests over
over dc » over de, other dc, over die
3.2 der » 2.2 der

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information costs over dc communication 3.2 der developpement en afrique.*.