Perhaps you should try some spelling variations:
development pattern » development patterns, development matters, developmental patterns
missing development » missions development, mining development, mission development
20th communication » 2011 communication, month communication, truth communication
retention rates » repetition rates
costs missing » costs arising, costs timing, costs using
technology 1 » technology _
rates policy » rate policy, states policy, frames policy
1 retention » _ retention, 4.1 retention, n2 retention
policy 20th » policy 21th, policy 2000, policy 2001
pattern a » pattern _, pattern 3, pattern 1

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

• Adding a wildcard symbol may retrieve word variants: technology 1 retention rates policy 20th communication costs missing development pattern a.*.