Perhaps you should try some spelling variations:
oral communication » personal communication
de developpement » sme development
developpement la » developpement de, developpement et, developpement du
technologies 2 » technologies _, technologies 4
la afrique » l afrique, la fabrique, en afrique
table 1 » table _, table 4.1
1 oral » 10 oral, 14 oral, 16 oral
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information table 1 oral communication a de developpement la afrique.*.