Perhaps you should try some spelling variations:
personal communication » interpersonal communication
et developpement » de developpement, le developpement, test development
developpement en » developpement et, developpement des, developpement de
variation among » starvation among, formation among, variation von
des variation » does variation, de variation, der variation
does personal » des personal, roles personal, des personals
among does » among boys, among les, among donors
a et » a set, a net, a bet
typologie » typologies, typology

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

• Adding a wildcard symbol may retrieve word variants: typologie des variation among does personal communication a et developpement en afrique.*.