Perhaps you should try some spelling variations:
communication series » communication services, communication systems, communication skills
cell communication » cell communications, oral communication, verbal communication
developpement du » developpement de, developpement des, developpement et
der variation » de variation, does variation, die variation
variation der » variation des, variation bei, variation _
typology der » typologie der, typologien der, typologie des
du afrique » en afrique, l afrique, de l'afrique
der cell » der celen, does cell, dry cell
der der » oder der, der de, der den

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

• Performing a fuzzy search may retrieve terms with similar spellings: typology der variation der der cell communication series _ developpement du afrique.~.