Perhaps you should try some spelling variations:
oral communication » personal communication
formation century » formative century, information centers, information centre
technologien des » technologien fur, technologien und, technologies 2
des formation » des formations, de formation, des information
developing em » developing e, developing eq, developing amp
century case » century a
case oral » ashe oral
em africa » 1 africa

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

• Adding a wildcard symbol may retrieve word variants: technologien des formation century case oral communication costs _ developing em africa.*.