Perhaps you should try some spelling variations:
information centers » information contents, information officers
oral communication » personal communication
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
14 developing » 4 developing, 1 developing, 10 developing
centers help » centers hold, centers real
developing e » developing _, developing a, developing east
help oral » help otl
costs 14 » costs 4, costs 1, costs 11.4
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 als information centers help oral communication costs 14 developing e africa.*.