Perhaps you should try some spelling variations:
transformation als » transformation a, transformation _, transformation 1
vote communication » voice communication, ante communication, remote communication
technologies die » technologies de, technologie die, technologies bit
developing areas » developing asia, developing east, developing a
4.1 developing » 3.1 developing, 4 developing, 3.3 developing
areas areas » areas arenas, seas areas, areas access
costs 4.1 » costs 4.2, costs 4.4, costs 4.3
als dm » als dem, als am

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

• Adding a wildcard symbol may retrieve word variants: technologies die transformation als dm vote communication costs 4.1 developing areas areas.*.