Perhaps you should try some spelling variations:
virtual communication » visual communication, verbal communication, cultural communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
variation among » starvation among, formation among, variation von
typologie der » typologie des, ideologie der
der variation » de variation, does variation, die variation
among mothers » among other, among northern, young mothers
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: typologie der variation among mothers virtual communication a de developpement en afrique.*.