Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
humans development » human development, humanist development, human developments
technologies 2 » technologies _, technologies 4
informatik der » information der, information oder, informatik und
2 informatik » 2.4 informatik, 2 information, der informatik
costs humans » ghosts humans, forests humans, sts human
1 african » _ african, 1 africa, 2 african
d data » 3d data, 5d data, id data
der d » der de, der db, der _

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 informatik der d data communications costs humans development 1 african.*.