Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
do communications » 10 communications, 14 communications, 2 communications
developing basin » developing asia, developing asian, developing based
technologies 4 » technologies _
4 information » 2 information, 1 information
information 1 » information 2, information 3, information 3.2
4 developing » 3 developing
costs 4 » costs _, costs a, costs 4.2
aid do » aid go, did do, aid does
1 aid » _ aid, 1 aim, 1 add
area. » areas.

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information 1 aid do communications costs 4 developing basin area.*.