Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
communication cost » communication costs, communication costa, communications costs
technologien und » technologie und, technologien des, technologien fur
oil development » rail development, tool development, social development
prices verbal » prices versus, prices equal
und relation » und regulation, und relational, und relationen
relation la » relation a, relations law, relation mpa
china labor » china labour, china's labor, child labor
la prices » gas prices, tea prices, car prices
cost oil » post oil, bust oil, cost iii

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

• Adding a wildcard symbol may retrieve word variants: technologien und relation la prices verbal communication cost oil development china labor.*.