Perhaps you should try some spelling variations:
communications networks » communication networks, telecommunications networks, telecommunications network
oral communications » oral communication, rural communications, global communications
have development » care development, trade development, chain development
technologies a » technologies _
development en » development menu, development can, development _
a information » _ information, land information, award information
networks have » networks 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 a information flows _ oral communications networks have development en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information flows _ oral communications networks have development en afrique.*.