Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
crises communication » crisis communication, crisis communications, causes communication
development ratha » development path, development paths, development rate
information age » information storage, information access, information about
technologies 1 » technologies _, technologies 4, technologies 2
ratha african » intra african, agoa african, baga african
les crises » des crises, les causes, les criteres
age les » age ages

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 information age les crises communication network _ development ratha african.*.