Perhaps you should try some spelling variations:
face communication » voice communication, de communication, time communication
information costs » information contents, information centers, information content
technologies tax » technologies a, technologies box, technologies can
developpement en » developpement et, developpement des, developpement de
tax information » 2 information, 1 information
3 developpement » de developpement, le developpement, et developpement
costs over » costs other, contests over
over face » over space, other face, over five

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

• Adding a wildcard symbol may retrieve word variants: technologies tax information costs over face communication a 3 developpement en afrique.*.