Perhaps you should try some spelling variations:
active communication » reactive communication, proactive communication, actions communication
technologie der » technologie de, technologien des, technologies de
der information » insider information, sector information, labor information
development do » development doi, development d, development ds
3.1 active » 1.1 active, 6.1 active, 3.1.1 active
do african » two african, _ african, 1 african
gap 3.1 » ap 3.1, dap 3.1, gap 3.8

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

• Adding a wildcard symbol may retrieve word variants: technologie der information gap 3.1 active communication a social development do african.*.