Perhaps you should try some spelling variations:
des informationssystems » das informationssystem, der informationssystem, als informationssystem
informationssystems a » informationssystems _, informationssystems als, informationssysteme d
oral communication » personal communication
technologies des » technologien des, technologies de, technologies dans
developing 1 » developing _, developing a, developing e
non oral » non oil, non arab
a non » _ non

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

• Adding a wildcard symbol may retrieve word variants: technologies des informationssystems a non oral communication costs _ developing 1 africa.*.