Perhaps you should try some spelling variations:
voice communication » voice communications, mobile communication, device communication
au developpement » du developpement, de developpement, le developpement
developpement en » developpement et, developpement des, developpement de
communication 3 » communication _, communication a
variation dead » variation des, variation der, variation de
de variation » der variation, die variation, does variation
typology de » typology _, typology 6, typology a
firms voice » firm's choice, firms bounce
dead firms » lead firms, ideas firms, held firms
3 au » 3 auf, 3 a, 3 zu

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

• Adding a wildcard symbol may retrieve word variants: typology de variation dead firms voice communication 3 au developpement en afrique.*.