Perhaps you should try some spelling variations:
african communications » africa communications, rica communications, optical communications
communications costs » communication costs, communications _
change information » chandos information, trade information
techniques change » techniques chapter, techniques case, techniques challenges
information 3 » information 2
20 developing » 2 developing, 10 developing, 24 developing
developing a » developing _
six african » five african
costs 20 » costs 60, costs 2.3, costs 2.1
a areas » 1 areas, 2 areas, 4 areas
3 six » 13 six, _ six, 2 six

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

• Adding a wildcard symbol may retrieve word variants: techniques change information 3 six african communications costs 20 developing a areas.*.