Perhaps you should try some spelling variations:
data communication » data communications
information costs » information contents, information centers, information content
technologies 2 » technologies _, technologies 4
china afrique » china africa
networks 2 » networks _, networks 1, networks a
costs d1 » costs 1, costs 4.1, costs 2.1
d1 data » 1 data, 11 data, 41 data

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies 2 information costs d1 data communication networks 2 development china afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies 2 information costs d1 data communication networks 2 development china afrique.*.