Perhaps you should try some spelling variations:
technologien series » technologies series, technology series, technologies varies
series information » business information
de communication » mobile communication, online communication
developing a » developing _
a age » _ age, ͳ age, 3 age
1 eu » _ eu, i eu, 1 zu
1 e » 1 le

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 series information ((1 eu) OR (1 e)) de communication costs _ developing a age.~".
• Adding a wildcard symbol may retrieve word variants: technologien series information ((1 eu) OR (1 e)) de communication costs _ developing a age.*.