Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
dem communication » de communication, debt communication, team communication
12.4 developing » 1.4 developing, 2.2 developing, 1.3 developing
contents from » content from, context from, comments from
developing ce » developing e, developing ict, developing cil
cost 12.4 » coast 12.4, costs 12.4, cost 2.4
ce africa » de africa, care africa, use africa

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information contents from dem communication cost 12.4 developing ce africa.*.