Perhaps you should try some spelling variations:
cell communication » cell communications, oral communication, verbal communication
des developpement » des developpements, de developpement, le developpement
variation using » variations during, variation und, variation among
typologie de » typologie des, typologie der, typologien der
de variation » der variation, die variation, does variation
des afrique » en afrique, de l'afrique
using die » using dit, using due, using drive
die cell » does cell, dry cell, air cell
a des » a der, a das

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

• Adding a wildcard symbol may retrieve word variants: typologie de variation using die cell communication a des developpement des afrique.*.