Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
chapter information » computer information, change information, career information
developpement de » developpement des, developpement durable
4 developpement » de developpement, le developpement, et developpement
de afrique » de l'afrique, en afrique, l afrique
sit data » situ data, set data, aiot data
3.2 sit » 3.2 site, 3.2 smt, 3.2 soft
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: techniques chapter information 3.2 sit data communications costs 4 developpement de afrique.*.