Perhaps you should try some spelling variations:
persona communication » personal communication, personal communications, personal communicator
information centre » information centers, information contents
developing real » developing areas, developing a, developing east
3.3 developing » 4 developing, 2 developing, 1 developing
real africa » rural africa, areas africa, health africa
de persona » de personal, de personas, die persona
centre de » centre _, centrale des
costs 3.3 » costs 2.3, costs 3.5, costs 4.3

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information centre de persona communication costs 3.3 developing real africa.*.