Perhaps you should try some spelling variations:
oral communication » personal communication
information based » information case, information bank, transformation based
developing areas » developing asia, developing east, developing a
technologies 4 » technologies _
4 information » 2 information, 1 information
3 developing » 3 development
areas africa » arabs africa, dress africa, farmers africa
based deep » based debt, fused deep
costs 3 » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information based deep oral communication costs 3 developing areas africa.*.