Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
true communication » truth communication, time communication, stroke communication
developments from » development from, developments after, developments _
per developments » oer developments, power developments, open developments
technology some » technology smes, technology soc, biotechnology some
some relation » comme relations, role relations, shape relation
relation c » relation _, relation a, relation 1
prime true » crime true
from dark » from dar, from darth, from data
c prime » co prime, 1 prime, _ prime

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

• Adding a wildcard symbol may retrieve word variants: technology some relation c prime true communication cost per developments from dark.*.