Perhaps you should try some spelling variations:
communication sts » communication costs, communication set, communication sur
technologies von » technologies co, technologies box, technologies can
von information » von informationen, can information
development can » development case, development co, development canada
information pt » information part, information 1, information 1.2
can africa » urban africa
sts human » its human, sdgs human, vs human
19 4 » 19 _, 1 4, 19 1
19 a » 19 _, 1 a, 9 a

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 4) OR (19 a)) communication sts human development can africa.~".
• Adding a wildcard symbol may retrieve word variants: technologies von information pt ((19 4) OR (19 a)) communication sts human development can africa.*.