Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
technology versus » technology mergers, technology users, technology consensus
urban development » human development
versus inflation » versus information, versus innovation, average inflation
de communication » mobile communication, online communication
inflation rates » inflation rate
development de » development d, development ds, developpement de
cost urban » most urban, worst urban, bust urban
de afrique » de l'afrique, en afrique, l afrique
space de » espace de, space die, space dead

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

• Adding a wildcard symbol may retrieve word variants: technology versus inflation rates space de communication cost urban development de afrique.*.