Perhaps you should try some spelling variations:
data communication » data communications
developpement en » developpement et, developpement des, developpement de
technology o140 » technology 1
4 developpement » de developpement, le developpement, et developpement
informatie die » informatie uit, informatie van, informatik der
frames data » rates data, framing data, phrases data
die frames » time frames, five frames, wire frames
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology o140 informatie die frames data communication costs 4 developpement en afrique.*.