Perhaps you should try some spelling variations:
device communication » services communication, voice communication, mobile communication
typologien der » typologie der, typologie des, apologien der
development ds » development d, development does, development desd
der variation » de variation, does variation, die variation
variation 6 » variation _, variations _, variation des
dem device » tpm device
ds afrique » en afrique, l afrique, de l'afrique
6 dem » 6 der, _ dem, 6 de
a sme » _ sme, 5 sme, a see
3 sme » 3 same, _ sme, 3 smt

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "typologien der variation 6 dem device communication ((a sme) OR (3 sme)) development ds afrique.~".
• Adding a wildcard symbol may retrieve word variants: typologien der variation 6 dem device communication ((a sme) OR (3 sme)) development ds afrique.*.