Perhaps you should try some spelling variations:
1.5 communication » 3.5 communication, 1.1 communication, 1.3 communication
developing forest » developing forms, development forest, developing coherent
information u.s » information und, information use, information 1.2
technologie 1 » technologies 1, technologien 1, technologie c
forest africa » forestry africa, foreign africa, darkest africa
a developing » a development
u.s debatte » u.s debate, 2.1 debatten, 9.2 debatten
debatte 1.5 » debate 1.5, debatten 1.1, debatte 3.3
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologie 1 information u.s debatte 1.5 communication costs a developing forest africa.*.