Perhaps you should try some spelling variations:
development slaves » development stages, development spaces, development islands
information cost » information costs, information lost, information case
base development » based development, case development, basin development
3 communication » 4 communication, de communication, data communication
communication 3 » communication _, communication a
technologies 2 » technologies _, technologies 4
slaves african » states african, class african, glass african
cost die » cost drip, cost dam, cost dna
3 base » 3 based, 3 basel, _ base
die 3 » die _, die 4, die e

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information cost die 3 communication 3 base development slaves african.*.