Perhaps you should try some spelling variations:
oral communication » personal communication
de developpement » sme development
developpement de » developpement des, developpement durable
des cooperation » de cooperation, des kooperations, d cooperation
typology des » typologie des, typologie der, typology _
among does » among boys, among les, among donors
does oral » does formal, does oil

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

• Adding a wildcard symbol may retrieve word variants: typology des cooperation among does oral communication _ de developpement de l'afrique.*.