Perhaps you should try some spelling variations:
personal communication » interpersonal communication
variation series » education series, action series, edition series
de developpement » sme development
developpement du » developpement de, developpement des, developpement et
des variation » does variation, de variation, der variation
typology des » typologie des, typologie der, typology _
4 personal » a personal, 1 personal, 1945 personal
du afrique » en afrique, l afrique, de l'afrique
series 4 » series _, series 1, series 2

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

• Adding a wildcard symbol may retrieve word variants: typology des variation series 4 personal communication _ de developpement du afrique.*.