athletics sports: Finds all documents that contain both words, "athletics" as well as "sports".
"Hokie Bird": Finds all documents that contains the exact phrase "Hokie Bird".
physics -quantum: Finds all documents that contain the word "physics" but excludes ones containing the word "quantum".
sports OR athletics: Finds all documents that contain at least one of the two words. "OR" needs to be upper-case.
