Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
put communication » post communication, et communication, get communication
urban development » human development
technology 3.2 » technology 2.2, technology 3.1, technology 2
3.2 relation » 3.2 correlation, 3.2 relationship
relation a » relation _, relational _, relation zur
crisis put » crisis pt, crisis part, crisis past
cost urban » most urban, worst urban, bust urban
a crisis » 19 crisis
a aortic » _ aortic, _ artic

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

• Adding a wildcard symbol may retrieve word variants: technology 3.2 relation a crisis put communication cost urban development a aortic.*.