Perhaps you should try some spelling variations:
communications medium » communication medium, communications media, communication mediums
a communications » a communication, data communications, a communicative
au developpement » du developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
technologies 4 » technologies _
4 information » 2 information, 1 information
de afrique » de l'afrique, en afrique, l afrique
medium au » medium a, medium fur, medium run
4.2 gas » 4.2 gaps, 3.4.2 gas, 4.2 goals
gas a » gas _, has a

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information 4.2 gas a communications medium au developpement de afrique.*.