Perhaps you should try some spelling variations:
2.14.1 communication » 2.14 communication, 3.4.1 communication, 9.4.1 communication
development planes » development plans, development players, development plan
urban development » human development
reaction states » reaction state, reaction rates, nation states
technology one » technology other, technology o140, technology 1
states public » wages public
public 2.14.1 » public 2.1.3, public 2.2.3, public 3.4.3
one reaction » over reaction, one reactor, one section
costs urban » cost urban, across urban, crisis urban
planes 4 » planes _, planes 5, planes c

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

• Adding a wildcard symbol may retrieve word variants: technology one reaction states public 2.14.1 communication costs urban development planes 4.*.