Perhaps you should try some spelling variations:
a communication » la communication, data communication, data communications
information 4 » information 2
3 development » 2 development
china afrique » china africa
networks 3 » networks _, networks 1, networks a
4 debt » 3 debt, 4 debats
debt a » 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 4 debt a communication networks 3 development china afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ information 4 debt a communication networks 3 development china afrique.*.