Perhaps you should try some spelling variations:
communication network » communication networks, communications network, communications networks
oral communication » personal communication
development where » development work, development what, development west
does development » dams development, ides development, smes development
technologies 4 » technologies _
4 informations » 4 information, 2 informations, 3 informations
where african » three african, other african, free african
network does » network do, network dwen, network data
1 oral » 10 oral, 14 oral, 16 oral
und 1 » und 19, und 13, und 18

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 informations und 1 oral communication network does development where african.*.