Perhaps you should try some spelling variations:
online communication » mobile communication, business communication, mobile communications
case information » care information, based information, phase information
techniques case » techniques laser, techniques based, techniques cost
information und » informations und
developing asia » development asia, developing a
3.5 developing » 3.3 developing, 3.2 developing, 1.5 developing
costs 3.5 » costs 4.2, costs 4.4, costs 2.3
asezs. » sezs., aezs.

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

• Adding a wildcard symbol may retrieve word variants: techniques case information und der online communication costs 3.5 developing asia asezs.*.