Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
models development » model development, module development, model developments
technology soc » technology shock, technology some, technology set
soc relation » shot relation, soc correlation, hoc regulation
relation von » regulation von, korrelation von, relation _
cost models » cost model, logit models
die mobile » does mobile, das mobile, day mobile
fund data » wind data
von die » von de, von diw, von drei

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

• Adding a wildcard symbol may retrieve word variants: technology soc relation von die mobile communication cost models development fund data.*.