Perhaps you should try some spelling variations:
2.1.3 communication » 2.2.3 communication, 2.8.3 communication, 6.1.3 communication
driven development » urban development
reaction state » reaction rate, section state, nation state
technology 1 » technology _
state public » states public, state policy, leste public
public 2.1.3 » public 2.2.3, public 2.14.1, public 2.3
costs driven » cost driven, costs drivers, costs driving
1 reaction » 1 reactions, _ reaction, a reaction
policy 5 » policy 1, policy 3, policy 4

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

• Adding a wildcard symbol may retrieve word variants: technology 1 reaction state public 2.1.3 communication costs driven development policy 5.*.