Perhaps you should try some spelling variations:
technologies china » technologies things, technology china, technologies can
oral communication » personal communication
china integration » china's integration, china integrating, chip integration
3 developing » 3 development
developing 4 » developing _, developing a, developing e
de oral » de otras, new oral
costs 3 » costs _, costs 4, costs a
4 areas » 1 areas, 2 areas, 4 areal
und de » und der, und des, und den

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

• Adding a wildcard symbol may retrieve word variants: technologies china integration und de oral communication costs 3 developing 4 areas.*.