Perhaps you should try some spelling variations:
convinced communications » advanced communication, coordinated communication, guinea communications
farmers convinced » farmers confronted
ou developpement » du developpement, au developpement, de developpement
developpement en » developpement et, developpement des, developpement de
des variation » does variation, de variation, der variation
typology des » typologie des, typologie der, typology _
variation a » variation _, variation 6, variation 5
a farmers » a farmer's, _ farmers, 5 farmers

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

• Adding a wildcard symbol may retrieve word variants: typology des variation a farmers convinced communications _ ou developpement en afrique.*.