Perhaps you should try some spelling variations:
man communication » human communication, oman communications, lean communication
2.1 developpement » 2.1 development, 2007 developpement, de developpement
developpement de » developpement des, developpement durable
interaction i » interaction ai, interaction ii, interaction _
de afrique » de l'afrique, en afrique, l afrique
costs 2.1 » costs 2.3, costs 4.1, costs 2.2
data man » data mean, data main, data map
i data » ii data, ai data, 2 data

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

• Adding a wildcard symbol may retrieve word variants: technologies _ interaction i data man communication costs 2.1 developpement de afrique.*.