Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
la communication » data communication, data communications
information 2 » information 3
china afrique » china africa
network 2 » network _, network 3, network 1
debt la » debt law, debt a, debt land
2 debt » 3 debt, 4 debt, 2.5 debt

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies _ information 2 debt la communication network 2 development china afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ information 2 debt la communication network 2 development china afrique.*.