Perhaps you should try some spelling variations:
information context » information content, information contents, information centers
communication cost » communication costs, communication costa, communications costs
developing across » developing cross, development across, developing areas
technologies 4 » technologies _
3.2 developing » 3.3 developing, 2.2 developing, 3 developing
4 information » 2 information, 1 information
context 3.1 » context 2.1, context 1, context 1.3
3.1 mass » 6.1 mass, 3.1 main
cost 3.2 » cost 2.4

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 3.1 mass communication cost 3.2 developing across africa.*.