Perhaps you should try some spelling variations:
autoren communication » actors communication, automated communication, open communication
technologies postal » technologies past, technologies boosted, technologies program
postal information » total information, hospital information, partial information
information costs » information contents, information centers, information content
communication 3.3 » communication _, communication a, communication 1
die autoren » die autorinnen
costs die » costs ii, costs iii, costs differ
1 afrique » l afrique, en afrique, 1 enrique
3.3 a » 3.3 _, 2.3 a, 4.3 a

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

• Adding a wildcard symbol may retrieve word variants: technologies postal information costs die autoren communication 3.3 a development 1 afrique.*.