Perhaps you should try some spelling variations:
oral communication » personal communication
information laws » information law
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
laws der » dass der, das der, laws d
der oral » der moral, der ort, der orte
costs au » costs a, costs amy, costs _
technologies » technology

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

• Adding a wildcard symbol may retrieve word variants: technologies scientific information laws der oral communication costs au developpement en afrique.*.