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
SPI
Schedule Performance Index. The SPI is an index on contract performance calculated by dividing the BCWP by the BCWS. It can be calculated with cumulative or current period data.