* Use & for AND
(hockey & football)
* Use / for OR
(hockey / football)
* Use ! for NOT
(hockey! football)
Special Characters:
* Use * to truncate
(e.g. athlet* finds athlete, athletes, athletic etc.)
* Use >, <, >=, <= for greater or less than
(e.g. <= 1999 finds dates earlier than 1999 inclusive)
* Use : to search a range
(e.g. 1999:2003, example:sample)