Perhaps you should try some spelling variations:
information portals » information problems, information policies, information products
urban development » human development
de communication » mobile communication, online communication
technologies do » technologies de, technologies box, technologies daf
do information » 2 information, 1 information, 3 information
costs urban » cost urban, across urban, crisis urban
portals 16 » portals 6, portals _, portals 5
16 de » 16 die, 16 der, 16 le

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

• Adding a wildcard symbol may retrieve word variants: technologies do information portals 16 de communication costs urban development 1 africa.*.