Perhaps you should try some spelling variations:
urban development » human development
technologies von » technologies co, technologies box, technologies can
information flow » information flows
von information » von informationen, can information
costs urban » cost urban, across urban, crisis urban
flow der » flow cmr, flow air, flow e
der risk » under risk, der risiko, der ring

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

• Adding a wildcard symbol may retrieve word variants: technologies von information flow der risk communication costs urban development _ afrique.*.