Perhaps you should try some spelling variations:
online communication » mobile communication, business communication, mobile communications
developing self » developing e, developing skills, developing areas
technologies 2 » technologies _, technologies 4
4 developing » 3 developing
des online » der online, das online, die online
3.2 des » 3.2 der, 3.2 das, 2.2 des
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 3.2 des online communication costs 4 developing self areas.*.