Perhaps you should try some spelling variations:
month communication » mouth communications, south communications, touch communication
model developments » model development, modern developments, code developments
developments from » development from, developments after, developments _
technology 4ir » technology 4, technology 4.1, technology 4.2
4ir relativen » der relativen, zur relativen, die relativen
relativen c » relative _, relative a
costs model » cost model, cost models, costs money
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 4ir relativen c prime month communication costs model developments from data.*.