Perhaps you should try some spelling variations:
developmental state » development strategy, developmental impact
oral communication » personal communication
4.2 developmental » 4.2 development, _ developmental, a developmental
technologies 2 » technologies _, technologies 4
information 2 » information 3
state africa » trade africa
how oral » how moral, how rural, how arab
2 how » _ how

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 2 how oral communication costs 4.2 developmental state africa.*.