Perhaps you should try some spelling variations:
communications networks » communication networks, telecommunications networks, telecommunications network
rate information » trade information, care information, private information
information case » information based, information age, information use
a communications » _ communications, a communication, _ communication
have development » care development, trade development, chain development
technology rate » technology trade, technology age, technology role
networks have » networks a
de a » de la, de sa, e a

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

• Performing a fuzzy search may retrieve terms with similar spellings: technology rate information case de a communications networks have development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology rate information case de a communications networks have development _ afrique.*.