Perhaps you should try some spelling variations:
open communication » human communication, 3 communication, 4 communication
development urban » development bank, development band, development update
information code » information model, information case, information cost
communication 1 » communication _, communication a, communication 3
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
urban africa » urban area
1 resource » a resource, 3 resource, 2 resource
code der » code oder, codes der, code de
der open » der oper, der opec, der tropen

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

• Adding a wildcard symbol may retrieve word variants: technologies a information code der open communication 1 resource development urban africa.*.