Perhaps you should try some spelling variations:
guinea communication » guinea communications, guiana communications, china communication
communication model » communication media
technologien dis » technologien des, technologien als, technologien im
oer developments » other developments, power developments, open developments
developments 2.3 » developments 12.3, development 2.3, developments 2.1
dis information » mis information, aids information, des informations
2.3 african » 2.4 african, 2 african
model oer » model over, model order, model outer

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information law _ guinea communication model oer developments 2.3 african.*.