Perhaps you should try some spelling variations:
informal communication » internal communication, information communication, internal communications
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
variation using » variations during, variation und, variation among
typologien der » typologie der, typologie des, apologien der
der variation » de variation, does variation, die variation
vs informal » _ informal, 3 informal
using vs » using vst, using 5s, using v2
media le » media love, media age, media law

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

• Adding a wildcard symbol may retrieve word variants: typologien der variation using vs informal communication media le developpement en afrique.*.