Perhaps you should try some spelling variations:
informal communication » internal communication, information communication, internal communications
de developpement » sme development
developpement du » developpement de, developpement des, developpement et
variation crop » variation from, variation across, variations from
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
6.2 informal » 6.2 informale, 4.2 informal, 6.6 informal
du afrique » en afrique, l afrique, de l'afrique
crop 6.2 » crops 6.3, chip 6.2, crop 1.6
media de » media die, media der, media diet

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation crop 6.2 informal communication media de developpement du afrique.*.