Perhaps you should try some spelling variations:
mobilen communications » mobile communications, mobile communication, mobile commusnication
communications costs » communication costs, communications _
technological trend » technological trends, technological fields, technological tools
trend information » agenda information, road information, fund information
information und » informations und
4 developing » 3 developing
developing 2 » developing _, developing a, developing e
ein mobilen » ein mobiles, einem mobilen, einer mobilen
costs 4 » costs _, costs a, costs 4.2
2 areas » 1 areas, 2 areal, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technological trend information und ein mobilen communications costs 4 developing 2 areas.*.