Perhaps you should try some spelling variations:
personal communication » interpersonal communication
communication india » communication media, communications media
variation using » variations during, variation und, variation among
developpement l » developpement il, developpement la, developpement de
die variation » de variation, does variation, der variation
typology die » typology _, typology 4.1, typology 6
es personal » des personal, e personal, ss personal
l afrique » en afrique
using es » using aes, using e, using 5s

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

• Adding a wildcard symbol may retrieve word variants: typology die variation using es personal communication india _ developpement l afrique.*.