Perhaps you should try some spelling variations:
personal communication » interpersonal communication
variation series » education series, action series, edition series
de developpement » sme development
communication 1 » communication _, communication a, communication 3
des variation » does variation, de variation, der variation
typology des » typologie des, typologie der, typology _
series 1945 » services 1945, series 14, series 1970
des afrique » en afrique, de l'afrique
1 de » 1 die, 1 der, _ de

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 1945 personal communication 1 de developpement des afrique.*.