Perhaps you should try some spelling variations:
"key regularity properties" » "key security properties", "weak regularity properties", "_ regularity properties", "a regularity properties"
"3 regulation properties" » "3 regulating properties", "3 coagulation properties", "3 granulation properties"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("key regularity properties") OR ("3 regulation properties"))*.
• Removing quotes may allow a broader search: (( key regularity properties ) or ( 3 regulation properties ))*.