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
OBS (Organizational Breakdown Structure)
OBS is an inverted “tree” diagram that identifies organizational relationships in increasing detail as one moves down the “tree”. The OBS is used as a mechanism for assigning work responsibilities.