Perhaps you should try some spelling variations:
communication cross » communication costs
development center » development case
urban development » human development
4 communication » 3 communication, 5.4 communication, de communication
technology 3.1 » technology 1, technology 2.2, technology _
based politics » based policies, flawed politics, nested politics
action based » location based, vision based
cross urban » across urban, crisis urban, cairo's urban
center case » centers case, century case, center based
3.1 action » 3.1 actions, 1.1 action, 2.3.1 action
politics 4 » politics _, politics a, politics 2

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

• Adding a wildcard symbol may retrieve word variants: technology 3.1 action based politics 4 communication cross urban development center case.*.