Perhaps you should try some spelling variations:
wave communication » wave communications, aware communication, face communication
developing china » developing china's, development china, developing caring
information der » information oder, information does, informatik der
technologies 2 » technologies _, technologies 4
3.1 developing » 3.3 developing, 3.2 developing, 4.1 developing
china africa » cpia africa, china asia
costs 3.1 » costs 3.5, costs 4.1, costs 2.1
low wave » low wage, how wave, low wages
der low » der lowe, der loo, der lohn

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information der low wave communication costs 3.1 developing china africa.*.