Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
technologien und » technologie und, technologien des, technologien fur
und information » fund information, road information, award information
developing east » development east, developing a, developing asia
information a » information age, information about
new voice » new voices, one voice
a new » _ new

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologien und information a new voice communication costs _ developing east (asezs. OR sezs.)~".
• Adding a wildcard symbol may retrieve word variants: technologien und information a new voice communication costs _ developing east (asezs. OR sezs.)*.