Perhaps you should try some spelling variations:
oral communication » personal communication
developpements de » developpement de, developpement des, developpement du
1 developpements » et developpements, des developpements, de developpement
variation using » variations during, variation und, variation among
de variation » der variation, die variation, does variation
typology de » typology _, typology 6, typology a
de afrique » de l'afrique, en afrique, l afrique
using es » using aes, using e, using 5s
es oral » vs oral, des moral, new oral
media 1 » media _

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

• Adding a wildcard symbol may retrieve word variants: typology de variation using es oral communication media 1 developpements de afrique.*.