Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
time communication » de communication, mobile communication, online communication
model developments » model development, modern developments, code developments
developments from » development from, developments after, developments _
technology some » technology smes, technology soc, biotechnology some
some relation » comme relations, role relations, shape relation
relation von » regulation von, korrelation von, relation _
time time » same time, life time
von time » non time, von tim, down time
from dr » from dar, from de, from dem

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

• Adding a wildcard symbol may retrieve word variants: technology some relation von time time communication cost model developments from dr.*.