Perhaps you should try some spelling variations:
change information » chandos information, trade information
techniques change » techniques chapter, techniques case, techniques challenges
la communication » data communication, data communications
developpement de » developpement des, developpement durable
a developpement » au developpement, de developpement, le developpement
de afrique » de l'afrique, en afrique, l afrique
3.2 dem » 3.2 der, 3.2 des, 3.2 det
costs a » costs _, costs 4
dem la » idem la, dem lg, dem land

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

• Performing a fuzzy search may retrieve terms with similar spellings: techniques change information 3.2 dem la communication costs a developpement de afrique.~.
• Adding a wildcard symbol may retrieve word variants: techniques change information 3.2 dem la communication costs a developpement de afrique.*.