Perhaps you should try some spelling variations:
south communication » south communications, mouth communications, month communication
per development » power development, spur development, oer developments
reduction 2.3 » reduction 3.3, reduction 2.2, reduction 10.3
index action » index option, index options, index author
race south » rice south, trade south, cape south
costs per » cost per
2.3 race » 2.3 trace, 2.3 face, 2.3 rare

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

• Adding a wildcard symbol may retrieve word variants: technology risk reduction 2.3 race south communication costs per development index action.*.