Perhaps you should try some spelling variations:
technologies stateful » technologies status, technologies stage, technologies strategies
stateful information » states information, state information, stateless information
face communication » voice communication, de communication, time communication
communication 6.1 » communication 4.1, communication 7.1, communication 1.1
information 1 » information 2, information 3, information 3.2
development l » development li, development 1, development law
l afrique » en afrique
der face » der farce, der fake, der facher
1 der » _ der, 2 der, 3 der
6.1 2 » 6.1 c2, 6.1 _, 6.1 a

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

• Adding a wildcard symbol may retrieve word variants: technologies stateful information 1 der face communication 6.1 2 development l afrique.*.