Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
change information » trade information, chief information
technical change » technological change
information et » information act, information _, information need
development a » development _, development bank, development banks
de mobile » does mobile, _ mobile, a mobile

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

• Adding a wildcard symbol may retrieve word variants: technical change information et de mobile communication network _ development a afrique.*.