Perhaps you should try some spelling variations:
information century » information centers, information centre, information center
food communication » good communication, world communication, ihrd communication
developing areas » developing asia, developing east, developing a
technologien 1 » technologies 1, technologien _, technologien 4
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
areas africa » arabs africa, dress africa, farmers africa
costs 2.3 » costs 4.2, costs 4.4
new food » new form

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

• Adding a wildcard symbol may retrieve word variants: technologien 1 information century new food communication costs 2.3 developing areas africa.*.