Perhaps you should try some spelling variations:
technologies based » technologies used, technology based, technologies a
3.2 communication » 3 communication, 2.3 communication, de communication
urban development » human development
development rates » development rate, development notes, development water
communication ii » communication ict, communication ihr, communication imc
based formation » based information, based deformation, based formative
formation 3.2 » information 3.2, formulation 3.2, formation 4.4
rates africa » state africa
ii urban » 2 urban, 4 urban, 1 urban
pre 3.2 » pre 3.4.2, care 3.2, core 3.2

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