Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
south communications » mouth communications, month communication, truth communication
model development » local development, social development, global development
development from » development forum, development fund
technology 21st » technology 2.1.1, technology 2.1.2, technology 2.1.3
21st relation » cost relations, east relations, 2 relation
higher south » higher growth, higher cost, higher costs
relation co » relations co, relation c, relation von
costs model » cost model, cost models, costs money
co higher » do higher, can higher, a higher

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

• Adding a wildcard symbol may retrieve word variants: technology 21st relation co higher south communications costs model development from data.*.