Perhaps you should try some spelling variations:
oral communication » personal communication
variation series » education series, action series, edition series
de developpement » sme development
developpement la » developpement de, developpement et, developpement du
typologien does » typologie des, typologien der, typologie der
does variation » de variation, der variation, die variation
la afrique » l afrique, la fabrique, en afrique
series 4 » series _, series 1, series 2
4 oral » _ oral, 2 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: typologien does variation series 4 oral communication a de developpement la afrique.*.