Perhaps you should try some spelling variations:
debats communication » debt communication, lea's communication, nets communication
information context » information content, information contents, information centers
communication cost » communication costs, communication costa, communications costs
technologies 4 » technologies _
1.4 developing » 12.4 developing, 1.3 developing, 14 developing
4 information » 2 information, 1 information
context 4 » context 3, context 1, context 2
4 debats » 4 debates, 1 debates, 2 debate
cost 1.4 » cost 14.4, cost 2.4, cost 1.2

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information context 4 debats communication cost 1.4 developing _ africa.*.