Perhaps you should try some spelling variations:
communication makes » communication markets, communication modes, communication mistakes
development banking » development planning, development bank, development banks
cities development » city development, countries development, editions development
4 communication » 3 communication, 5.4 communication, de communication
technologies 2 » technologies _, technologies 4
makes cities » making cities
gap 2.5 » gap 2.3
2.5 4 » 2.5 _, 2.5 a, 2.5 d

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information gap 2.5 4 communication makes cities development banking africa.*.