Perhaps you should try some spelling variations:
des informationssystem » des informationssystems, das informationssystem, der informationssystem
informationssystem vs » informationssystems als, informationssystem 2.3, informationssystem 5.4
oral communication » personal communication
technologien des » technologien fur, technologien und, technologies 2
developing em » developing e, developing eq, developing amp
em africa » 1 africa
non oral » non oil, non arab

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

• Adding a wildcard symbol may retrieve word variants: technologien des informationssystem vs non oral communication costs _ developing em africa.*.