Perhaps you should try some spelling variations:
des communication » les communications, nets communication, c's communication
technologies 4 » technologies _
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
4 information » 2 information, 1 information
contents case » contents fase, context case, contents causal
costs 2.3 » costs 4.2, costs 4.4
case des » cases des, case das, phase des

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information contents case des communication costs 2.3 developing _ africa.*.