Perhaps you should try some spelling variations:
communication medium » communication mediums, communication media, communications media
technologies based » technologies used, technology based, technologies a
data communication » data communications
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
based insertion » base insertion, based instruction, based interaction
insertion 6.2 » insertion 6.1, insertion 6.4, insertion 6.6
file data » chile data, file path, profile data
medium au » medium a, medium fur, medium run
6.2 file » 8.6.2 file, 9.6.2 file, 6.2 fixed

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

• Adding a wildcard symbol may retrieve word variants: technologies based insertion 6.2 file data communication medium au developpement en afrique.*.