Perhaps you should try some spelling variations:
communications slaves » communications series, communications services, communications studies
african development » asian development, urban development, driven development
1 communications » 10 communications, 14 communications, 1 communication
development use » development using, development under, development unit
technologies 2 » technologies _, technologies 4
slaves african » states african, class african, glass african
3.2 a » 3.2 _, 2.2 a

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies 2 information 3.2 a 1 communications slaves african development use africa.~.
• Adding a wildcard symbol may retrieve word variants: technologies 2 information 3.2 a 1 communications slaves african development use africa.*.