Perhaps you should try some spelling variations:
sample communication » example communication, complex communication, people communication
technologies von » technologies co, technologies box, technologies can
developing human » development human, developing a, developing asia
von information » von informationen, can information
4 developing » 3 developing
human africa » roman africa, urban africa, can africa
das sample » data sample, a sample, d sample
4.2 das » 1.2 das, 3.2 das, 2.2 das
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 von information 4.2 das sample communication costs 4 developing human africa.*.