Perhaps you should try some spelling variations:
communication service » communication services, communications services, telecommunication services
transfer information » transport information, transit information, traveler information
information gaps » information gap, information flows, information needs
a communication » _ communication, _ communications, mass communication
development co » development _, development a, development case
de a » de la, de sa, e a

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

• Adding a wildcard symbol may retrieve word variants: technology transfer information gaps de a communication service _ development co afrique.*.