Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
typologie der » typologie des, ideologie der
aktion series » action series, motion series, nation series
series deas » series bias, series de, series models
der aktion » der fiktion, der aktionare
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 aktion series deas voice communication a de developpement en afrique.*.