The Simple interface supports the following search criteria:
AND
Words in queries are combined with AND by default. Search for documents that contain the word cat and the word dog:
cat dog
NOT
Prefix words that you want to exclude from the query with a hyphen (-). Search for documents about the word "cat", but not the word "dog":
cat -dog
Phrases
Use double quotes (") to make phrases. Search for for documents that contain the phrase "cats and dogs":
"cats and dogs"
Search a specific site
Use site: to limit search results to a particular site. See the article on Search Fields for a complete list of all search fields you can use to narrow your query.
cats site:amazon.com
Eliminate a specific site
You can use the NOT operator in any field. Search for documents about cats on all sites EXCEPT google.com
cats site:(-google.com)
Search a list of sites
To limit your search to a list of sites, separate them using the OR operator (|).
cats site:(amazon.com|espn.go.com|cnn.com)
Grouping
Use parentheses to group terms. You can nest groups as well, e.g. "((a | b) c)". Search for documents containing the the word "cat" or the word "dog", and the word "control":
(cat | dog) control
Wildcards
Use "*" for a placeholder in phrases, e.g. "a * c" matches "a b c" or "a x c" but not "a c" or "a b b c". Search for documents that contain phrases matching "The cat [some word] on the bed":
"the cat * on the bed"
OR
Use "|" to do OR. Search for documents containing the word "cat" or the word "dog":
cat | dog
You can find search results:
having "All of the words" entered, OR having "Any of the words' entered, OR having the "Exact Phrase" entered.
Set the number of results per page
Find results only from specific site / sites
ex: esearchnet.com (returns results only from esearchnet.com) or esearchnet.com,wikipedia.org,php.net (comma sepearated list to return results restricted to teh sites in the list)
You can set the following preferences for all your searches:
Number of results returned: 10, 20, 30 or 50 results per page.
Adult content filtering: Turn off, Turn on or moderate filtering