Perhaps you should try some spelling variations:
personal communication » interpersonal communication
developpement en » developpement et, developpement des, developpement de
d developpement » de developpement, du developpement, le developpement
alma variation » la variation, areal variation, a variation
typology alma » typology a
die personal » die personale, de personal, die persona

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

• Adding a wildcard symbol may retrieve word variants: typology alma variation _ die personal communication a d developpement en afrique.*.