Perhaps you should try some spelling variations:
communication medium » communication mediums, communication media, communications media
5.4 communication » de communication, data communication
und developpement » un developpement, en developpement, de developpement
developpement en » developpement et, developpement des, developpement de
technologies 4 » technologies _
4 information » 2 information, 1 information
medium und » medien und
4.2 die » 2.2 die
die 5.4 » diode 5.4, time 5.4, life 5.4

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 die 5.4 communication medium und developpement en afrique.*.