Perhaps you should try some spelling variations:
personal communication » interpersonal communication
dams developpement » dams development, de developpement, du developpement
variation does » variation des, variation notes, variation der
debt personal » der personal, de personal, des personal
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
des afrique » en afrique, de l'afrique
does debt » does de
a dams » a das, _ dams, a dam

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation does debt personal communication a dams developpement des afrique.*.