My search script can search for terms and search for phrases. If I add a "-" before the term it will search the database for results that do not contain the negated word.
I am just not sure how users would consider negating phrases. I would do it like this: -->
css php mysql -website -"sample scripts"
This will search for all results that contain all the words: "css", "php", "mysql", but not the word "website" or the phrase "sample scripts".
Does this seem like the way users would commonly consider using a search script to negate phrases without reading the instructions?