Perhaps you should try some spelling variations:
communication mode » communication model, communication modes, communication module
urban development » human development
information gaps » information gap
technologies 2 » technologies _, technologies 4
development co » development case, development china
gaps 3.2.3 » gaps 1.2.3, gaps 3.2.9, cas 3.2.3
3.2.3 mass » 3.2.3 das, 3.2.3 case, 3.2 mass
mode urban » modern urban, pope urban
co africa » can africa, do african, 1 africa

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information gaps 3.2.3 mass communication mode urban development co africa.*.