Perhaps you should try some spelling variations:
oral communication » personal communication
costs information » cost information, tests information, customs information
technology costs » technology cost, technology course, technology case
du developpement » de developpement, le developpement, et developpement
developpement du » developpement de, developpement des, developpement et
information 4.3 » information 4.2, information 4.3.3, information 1.2
du afrique » en afrique, l afrique, de l'afrique
4 oral » _ oral, 2 oral
4.3 4 » 4.3 _, 4.3 a, 4.3 p

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

• Adding a wildcard symbol may retrieve word variants: technology costs information 4.3 4 oral communication _ du developpement du afrique.*.