Perhaps you should try some spelling variations:
communication model » communication media
worked development » workers development, world development, work development
information costs » information contents, information centers, information content
technologies 4 » technologies _
4 information » 2 information, 1 information
development d » development ds, development 1, development did
model worked » model work, model works, modern worker
costs des » costs fees
d african » do african, _ african, 1 african
des risk » does risk, lens risk, nets risk

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information costs des risk communication model worked development d african.*.