Phrase:Returns all topics that contain the exact phrase in the search criteria. Use quotation marks around the phrase. Ex."system administration"
And:Returns all topics that contain all the words in the search criteria, in any combination. Insert a plus sign between all words in the search criteria. Ex.system + administration
Or:Returns all topics with any combination of words in the search criteria. This is the default. Ex.system administration
Create and Work With Roles
When you create a security role, you define the access rights of its members. After you create a role, you select the users who belong to the role. You can also modify a role or use it as the basis for another role.