Perhaps you should try some spelling variations:
through conversation » through conversations, through conversational, through conservation
conversation costs » congestion costs, compensation costs, conversation worth
development towns » development tools, development towards, development trends
land development » world development, child development
technology 3.1 » technology 1, technology 2.2, technology _
creation rate » creation rates, creation a
class through » classes through, pass through, loss through
3.1 creation » 3.2 creation, 3.4 creation, 3.3.1 creation
towns africa » works africa
rate class » race class, caste class, grade class
costs land » cost land, costly land, costs canada

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

• Adding a wildcard symbol may retrieve word variants: technology 3.1 creation rate class through conversation costs land development towns africa.*.