Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
change information » chandos information, trade information
techniques change » techniques chapter, techniques case, techniques challenges
information und » informations und
developing east » development east, developing a, developing asia
a developing » a development
der mobile » der mobilen, der mobil, does mobile
east sezs » east asezs, east seeds
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: techniques change information und der mobile communications costs a developing east sezs.*.