Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
information centres » information centre, information centrism, information centers
developing urban » development urban, developing human, developing areas
technologies pt » technologies _, technologies 4, technologies 2
e communication » de communication, 1 communication, une communication
pt information » ct information, plot information, get information
5.4 developing » 6.4 developing, 3.3 developing, 2.2 developing
urban africa » urban area
centres 3.3 » centres 5.3, centres 3.5, centers 3.3
costa 5.4 » costs 5.4, cost 2.4, cost 3.4
3.3 e » 3.3 _, 3.3 a

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

• Adding a wildcard symbol may retrieve word variants: technologies pt information centres 3.3 e communication costa 5.4 developing urban africa.*.