Perhaps you should try some spelling variations:
information contract » information contracts, information constraint, information content
oral communication » personal communication
technologie der » technologie de, technologien des, technologies de
der information » insider information, sector information, labor information
4 developing » 3 developing
developing a » developing _
contract 4 » contract _, contract a, contract 2
a africa » 1 africa, can africa, em africa
costs 4 » costs _, costs a, costs 4.2
4 oral » _ oral, 2 oral

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

• Adding a wildcard symbol may retrieve word variants: technologie der information contract 4 oral communication costs 4 developing a africa.*.