Perhaps you should try some spelling variations:
communication modern » communication model, communication modes, communication mode
urban development » human development
technologies key » technologies any, technologies know, technologies _
key information » energy information
information der » information oder, information does, informatik der
a communication » la communication, data communication, data communications
de a » de la, de sa, der a

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies key information der de a communication modern urban development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies key information der de a communication modern urban development _ afrique.*.