Perhaps you should try some spelling variations:
developed country » developed countries, developing country
c's communication » lea's communication, class communication, mass communication
technologies 4.1 » technologies 2.1, technologies 3.1, technologies 3.2
4.1 integration » 3.3 integration, 4 integration, 3 integration
human developed » human development, human developing, human developments
integration d » integration de, integration do, integration du
costs human » sts human, ghosts humans, beasts human
role c's » role case, role des, role can
d role » du role, 3 role, 4 role

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

• Adding a wildcard symbol may retrieve word variants: technologies 4.1 integration d role c's communication costs human developed country risk.*.