Perhaps you should try some spelling variations:
paper communications » power communication, face communications, layer communication
communications costs » communication costs, communications _
developing china's » development china's, developing asia's, developing africa's
technologies die » technologies de, technologie die, technologies bit
transformation 1 » transformation _, transformation a, transformation 3
china's areas » china's dreams, china's great, china's arms
a developing » a development
und paper » und papier, d paper, und papa
costs a » costs _, costs 4
1 und » _ und, i und, 2 und

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

• Adding a wildcard symbol may retrieve word variants: technologies die transformation 1 und paper communications costs a developing china's areas.*.