Perhaps you should try some spelling variations:
welle communication » cell communication, people communication, called communication
technology social » technology series
social functions » social function, special functions, social sanctions
3.1 development » 2 development
development de » development d, development ds, developpement de
functions als » functions all, functions a, functions early
vor welle » von welle
costs 3.1 » costs 3.5, costs 4.1, costs 2.1
de africa » does africa, de america, use africa
als vor » adels vor, als volk

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

• Adding a wildcard symbol may retrieve word variants: technology social functions als vor welle communication costs 3.1 development de africa.*.