Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
trade development » software development
variation using » variations during, variation und, variation among
development li » development lid, development lie, development lin
des variation » does variation, de variation, der variation
des verbal » des verbalen, des verbs, models verbal
li afrique » l afrique, en afrique
using des » using pdes, using aes, using dbs
typologie » typologies, typology

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

• Adding a wildcard symbol may retrieve word variants: typologie des variation using des verbal communication a trade development li afrique.*.