Perhaps you should try some spelling variations:
informal communication » internal communication, information communication, internal communications
communication india » communication media, communications media
do developpement » de developpement, du developpement, le developpement
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
des afrique » en afrique, de l'afrique
crop 6.2 » crops 6.3, chip 6.2, crop 1.6
india do » india d, india does, india did

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 india do developpement des afrique.*.