Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
technologies 3 » technologies _, technologies 4, technologies 2
3 information » 1 information
4 development » 2 development, 4 developing
china afrique » china africa
de data » e data, wide data, de datos
costs 4 » costs _, costs a, costs 4.2

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies 3 information _ de data communications costs 4 development china afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies 3 information _ de data communications costs 4 development china afrique.*.