Perhaps you should try some spelling variations:
communication theory » communication technology
voice communication » voice communications, mobile communication, device communication
luo developpement » leur developpement, le developpement, du developpement
technologien zur » technologien fur, technologien des, technologien und
zur information » fur information, your information, der information
developpement l » developpement il, developpement la, developpement de
theory luo » theory law
l afrique » en afrique
de voice » de voce, de voie, new voice

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

• Adding a wildcard symbol may retrieve word variants: technologien zur information _ de voice communication theory luo developpement l afrique.*.