Perhaps you should try some spelling variations:
oral communication » personal communication
technologien math » technologien mit, technologien als, technologien am
math information » catch information, much information, health information
information a » information age, information about
4 developing » 3 developing
developing 4 » developing _, developing a, developing e
die oral » die moral, die orte
costs 4 » costs _, costs a, costs 4.2
4 areas » 1 areas, 2 areas, 4 areal
a die » 2 die, 3 die, _ die

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

• Adding a wildcard symbol may retrieve word variants: technologien math information a die oral communication costs 4 developing 4 areas.*.