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
a developpement » au developpement, de developpement, le developpement
de afrique » de l'afrique, en afrique, l afrique
det data » debt data, pet data, set data
3.2 det » 3.2 der, 3.2 dem, 3.2 des
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: techniques chapter information 3.2 det data communications costs a developpement de afrique.*.