Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
des developpements » deux developpements, de developpement, et developpements
developpements en » developpement en, developpement et, developpements de
typologien die » typologien der, typologie des, typologie der
die variation » de variation, does variation, der variation
variation aid » variation im, variation und, variation a
do verbal » non verbal, des verbal, _ verbal
aid do » aid go, did do, aid does

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

• Adding a wildcard symbol may retrieve word variants: typologien die variation aid do verbal communication _ des developpements en afrique.*.