Perhaps you should try some spelling variations:
communication sts » communication costs, communication set, communication sur
a communication » la communication, data communication, data communications
technologies 1 » technologies _, technologies 4, technologies 2
development co » development case, development china
sts human » its human, sdgs human, vs human
co africa » can africa, do african, 1 africa
1.2 9 » 1.2 a, 1.2 r, 1.2 4

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 1 information ((1.2 9) OR (1.2 _)) a communication sts human development co africa.~".
• Adding a wildcard symbol may retrieve word variants: technologies 1 information ((1.2 9) OR (1.2 _)) a communication sts human development co africa.*.