Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
3.2 communication » 3 communication, 2.3 communication, de communication
technologies des » technologien des, technologies de, technologies dans
des information » des informations, does information, dis information
10.4 developing » 1.4 developing, 12.4 developing, 10.3 developing
contents how » content how, contents co, contents mot
developing a » developing _
cost 10.4 » cost 14.4, costs 10.6, cost 2.4
a africa » 1 africa, can africa, em africa
how 3.2 » how 3.4, how 4.2, how 6.2

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

• Adding a wildcard symbol may retrieve word variants: technologies des information contents how 3.2 communication cost 10.4 developing a africa.*.