Perhaps you should try some spelling variations:
oral communication » personal communication
information cause » information case, information use, information classes
technologien der » technologien des, technologie der, technologien fur
developing waste » developing east, developing water, developing eastern
der information » insider information, sector information, labor information
waste accessed » last accessed, websites accessed
3 developing » 3 development
cause has » cause a, cause its
has oral » has rural, u.s oral, vs oral
costs 3 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technologien der information cause has oral communication costs 3 developing waste accessed.*.