Perhaps you should try some spelling variations:
technologies things » technologies ethics, technologies going, technologies teaching
things integration » china's integration, china integration, doing integration
oral communication » personal communication
3 developing » 3 development
developing 4 » developing _, developing a, developing e
und doing » un doing
costs 3 » costs _, costs 4, costs a
4 areal » 4 real, _ areal, 2 areal

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

• Adding a wildcard symbol may retrieve word variants: technologies things integration und doing oral communication costs 3 developing 4 areal.*.