Perhaps you should try some spelling variations:
2.1 communication » 2.14 communication, 2.3 communication, 2.7 communication
relations mining » relations training, relations defining, relations managing
developpement en » developpement et, developpement des, developpement de
4 developpement » de developpement, le developpement, et developpement
technology 4.4 » technology 14.4, technology 4.1, technology 4.2
mining project » mining projects
4.4 relations » 1.4 relations, 2.4 relations, 1.2 relations
project 2.1 » project 3.1, project 5.1, project 2.2
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 4.4 relations mining project 2.1 communication costs 4 developpement en afrique.*.