Perhaps you should try some spelling variations:
personal communication » interpersonal communication
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
rheologie des » theologie des, theologie der, ideologie des
des variation » does variation, de variation, der variation
variation 6 » variation _, variations _, variation des
6 1945 » m 1945, p 1945, f 1945

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

• Adding a wildcard symbol may retrieve word variants: rheologie des variation 6 1945 personal communication _ le developpement en afrique.*.