Since Search in twitter has become a huge deal of relevant real time information source, this special operators for advanced search are very handy to find the tweets we need. I wonder hoe twitter filters the positive and negative attitude 
| Operator | Finds tweets… |
|---|---|
| twitter search | containing both “twitter” and “search”. This is the default operator. |
| “happy hour“ | containing the exact phrase “happy hour”. |
| love OR hate | containing either “love” or “hate” (or both). |
| beer -root | containing “beer” but not “root”. |
| #wedding | containing the hashtag “wedding”. |
| from:aeromentalN | sent from person “aeromentalN. |
| to:aeromentalN | sent to person “aeromentalN”. |
| @aeromentalN | referencing person “aeromentalN”. |
| “happy hour” near:“san francisco” | containing the exact phrase “happy hour” and sent near “san francisco”. |
| near:NYC within:15mi | sent within 15 miles of “NYC”. |
| superhero since:2009-10-22 | containing “superhero” and sent since date “2009-10-22″ (year-month-day). |
| ftw until:2009-10-22 | containing “ftw” and sent up to date “2009-10-22″. |
movie -scary  |
containing “movie”, but not “scary”, and with a positive attitude. |
flight  |
containing “flight” and with a negative attitude. |
| traffic ? | containing “traffic” and asking a question. |
| hilarious filter:links | containing “hilarious” and linking to URLs. |
| news source:twitterfeed | containing “news” and entered via TwitterFeed |
Source: Twitter Help – How To Use Advanced Twitter Search Operators
