Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
urban development » human development
4 communication » 3 communication, 5.4 communication, de communication
technologies a » technologies _, technologies 4, technologies 2
information de » information der, information due, informacion de
africa afrique » africa africa
a information » 2 information, 1 information
cost urban » most urban, worst urban, bust urban
de goey » de goede, der goes
goey 4 » goes 4

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

• Adding a wildcard symbol may retrieve word variants: technologies a information de goey 4 communication cost urban development africa afrique.*.