Yahoo! AND Example: political AND cartoons finds everything with BOTH words "political" AND "cartoons"
Yahoo! OR Example: political OR cartoons finds everything with EITHER of the words "political" OR "cartoons"
Yahoo! Plus Sign "+" (Boolean AND) Example:+Bart Simpson finds files with "Bart" in them, weighting those with "Simpson" more heavily
Yahoo! Minus Sign "-" (Boolean NOT) Example: Bart -Simpson finds files with "Bart" in them but without the word "Simpson"
Yahoo! Plus "+" and Minus Sign "-" Example: +animation -Simpsons finds files with "animation" in them, but NOT "Simpsons"
Yahoo! truncation Example: dogg* find everything on "doggerel" and "dogged" and "Snoop Doggy Dogg"
Yahoo! Adjacency Example: "political cartoons" finds the phrase where the word "political" precedes the word "cartoons"
Yahoo! proximity searching is apparently not available.
Yahoo! TITLE Example:t:NTDB will find all items with "NTDB" in the HTML TITLE field, or <TITLE>NTDB</TITLE>
Yahoo! URL Example:u:monsanto will find all items with "monsanto" in the Uniform Resource Locator (URL)