Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
power development » water development, career development, hydropower development
de communication » mobile communication, online communication
development from » development forum, development fund
relation von » regulation von, korrelation von, relation _
cost power » cost per, soft power
von come » von lome, von coase, von cohen
come de » comte de, rome de, compte de

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

• Adding a wildcard symbol may retrieve word variants: technology _ relation von come de communication cost power development from data.*.