Perhaps you should try some spelling variations:
communication sts » communication costs, communication set, communication sur
de communication » mobile communication, online communication
technologies von » technologies co, technologies box, technologies can
von information » von informationen, can information
sts human » its human, sdgs human, vs human
pt 19 » pt 9, pt 10, pt 11
pt 1 » pt 2

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies von information ((pt 19) OR (pt 1)) de communication sts human development _ african.~".
• Adding a wildcard symbol may retrieve word variants: technologies von information ((pt 19) OR (pt 1)) de communication sts human development _ african.*.