Perhaps you should try some spelling variations:
duration language » education language, migration language, educational language
3.2 communication » 3 communication, 2.3 communication, de communication
developpement la » developpement de, developpement et, developpement du
language course » language culture
a developpement » au developpement, de developpement, le developpement
technologies 4 » technologies _
4 duration » _ duration, a duration, i duration
course 3.2 » courses 3.2, course 1.2, course 3.1
la afrique » l afrique, la fabrique, en afrique
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 duration language course 3.2 communication costs a developpement la afrique.*.