Perhaps you should try some spelling variations:
personal communication » interpersonal communication
technologies cost » technologies co, technologies case, technologies cohort
developing africa » developing africa's, developing america, development africa
cost information » postal information, about information, asset information
africa africa » afrika africa, africa africa's, america africa
die personal » die personale, de personal, die persona
4 developing » 3 developing
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies cost information _ die personal communication costs 4 developing africa africa.*.