Perhaps you should try some spelling variations:
development centers » development center, development partners, development chapter
3.2 communication » 3 communication, 2.3 communication, de communication
drive development » driven development, rice development, river development
relative incomes » relative income
incomes policy » notes policy
technology 4 » technology _, technology 1, technology 3
costs drive » costs drivers, cost driven, costs driving
4 relative » _ relative, a relative, 3 relative
policy 3.2 » policy 3.1, policy 3.3, policy 2.1
centers pt » centers _, centers 10, centers 21

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

• Adding a wildcard symbol may retrieve word variants: technology 4 relative incomes policy 3.2 communication costs drive development centers pt.*.