Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
technologien labor » technology labor, technologies lasers, technologien fur
labor information » sector information
information case » information based, information can, information costs
4 developing » 3 developing
debt verbal » des verbal
case debt » rate debt, case des
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologien labor information case debt verbal communication costs 4 developing _ areas.*.