9. Part I: Query Input Interpreting Your Query 1. All Search Terms Count Google returns only pages that match all your search terms. Note: If you want pages containing any (instead of all) of your search terms, use the OR operator .
10. Part I: Query Input Interpreting Your Query (cont.) 2. Search Terms Match Exactly Google returns pages that match your search terms exactly. If you search for … Google won't find … Cheap inexpensive TV televisione If you search for … Google finds … NYC New York City GNP Gross National Product Note: You can find synonyms in searches with Google. Just put a tilde in front of every term you'd like to include. Google suggests, for instance, searching for ~food ~facts for information on recipes and nutrition.
11. Part I: Query Input Interpreting Your Query (cont.) 3. Similar Words Match Google returns pages that match variants of your search terms. The query [ child bicycle helmet ] finds pages that contain words similar to your search terms, e.g., “child,” “children,” or “children's,” “bicycle,” “bicycles,” “bicycle's,” “bicycling,” or “bicyclists,” and “helmet” or “helmets.” Note: If you only want to search for pages that contain some term(s) exactly, precede each such term with a plus sign (+) or enclose more than one term in quotes (" ") .
12. Part I: Query Input Interpreting Your Query (cont.) 4. Stop Words Google ignores some common words called “stop words,” e.g., the , on , where , how , de , la , as well as certain single digits and single letters. 5. Word Limit Google limits queries to 32 words. The limit applies to search terms and operators but not stop words .
13. Part I: Query Input Interpreting Your Query (cont.) 6. Terms Nearby Google favors results that have your search terms near each other. Google considers the proximity of your search terms within a page. 7. Terms in Order Google gives higher priority to pages that have the terms in the same order as in your query. Consequently, you should enter search terms in the order in which you would expect to find them on the pages you're seeking.
Why Google? Once upon a time, the most valuable secret formula in American business was Coca-Cola’s. Today, it’s Google’s master algorithm. In the search business, however, there’s no rival to play the role of Pepsi. Yahoo is the closest but still a distant No. 2, and Google earns more profits in a single quarter than Yahoo does in a year. (Randall Stross, NY Times, June 24, 2007) Biggest web search engine database (25 or more billion pages) Results often include what you want Features, shortcuts, special databases & services
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