Perhaps you should try some spelling variations:
information centers » information contents, information officers
oral communication » personal communication
technologien from » technologies from, technology from, technologien fur
from information » from informal, 1 information
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
centers help » centers hold, centers real
developing e » developing _, developing a, developing east
help oral » help otl
costs 2.3 » costs 4.2, costs 4.4
e africa » em africa, de africa, eu africa

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

• Adding a wildcard symbol may retrieve word variants: technologien from information centers help oral communication costs 2.3 developing e africa.*.