Perhaps you should try some spelling variations:
information context » information content, information contents, information centers
communication costa » communication costs, communications costs, communication cote
face communication » voice communication, de communication, time communication
slums developing » farms developing, blocs developing, fius developing
technologies 2 » technologies _, technologies 4
context 3.2 » context 3.1, context 2, context 2.1
3.2 face » 2.2 face, 6.2 face, 12.2 face

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information context 3.2 face communication costa slums developing _ africa.*.