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 role » technology's role, technology risk, technology r
role relations » whole relations, race relations, people relations
relations 3 » relations _, relations a
same time » space time
from dar » from day, from dr, from data
3 same » _ same, 3 safe, 3 sama

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

• Adding a wildcard symbol may retrieve word variants: technology role relations 3 same time communication cost model developments from dar.*.