Perhaps you should try some spelling variations:
personal communication » interpersonal communication
developing state » developing states, developing stable, developing strategy
technologies 2 » technologies _, technologies 4
roles personal » roles persons, names personal, loans personal
information 1 » information 2, information 3, information 3.2
3 developing » 3 development
state africa » trade africa
1 roles » 10 roles, 13 roles, _ roles
costs 3 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 1 roles personal communication costs 3 developing state africa.*.