Perhaps you should try some spelling variations:
cell communication » cell communications, oral communication, verbal communication
leur developpement » le developpement, deux developpements, de developpement
developpement il » developpement de, developpement et, developpement du
variation der » variation des, variation bei, variation _
il afrique » l afrique, en afrique
does cell » es cell

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

• Adding a wildcard symbol may retrieve word variants: typology _ variation der does cell communication media leur developpement il afrique.*.