To get more specific search results, try using the following tips:

Use quotation marks
Example: "lord of the rings"

Use quotation marks to find words which must appear adjacent to each other, for example, "lord of the rings" Otherwise, the search results will include the word lord, of, the, and the word rings, but not necessarily in that order. The words may appear anywhere, and in any order, within the document.

Use multiple words
Example: gladiator anachronism jeans scene

Using multiple words will return more refined results than a single word. For example, typing our free product will return more relevant results than typing just product. (Keep in mind that relevant results are returned even if they don't contain all query terms.)

Use similar words
Example: safe secure privacy security

The more similar words you use in a search, the more relevant your results will be.

Use plus (+) or minus (-)
Example: +"harry potter"

Use a plus sign when your search term or phrase must appear in the search results. Use a minus sign to indicate undesirable term(s). The plus sign tells the search engine that a certain word or phrase is required in the search results, and a minus sign indicates that a word or phrase must be absent in the search results.

Note: A phrase must be contained within quotation marks. Leave no spaces between the plus or minus sign and the term.

Use wildcards
Examples:
wh*
"wh* are"
415-*-*

Wildcard searches can expand the number of matches for a particular request. The * character is used as the wildcard character.

For instance, searching for wh* will find the words what, why, when, whether, and any other word that starts with wh.
Searching for *her* will find the words here, whether, together, gathering, and any other word that contains her anywhere in the word.

Wildcards may be combined with the standard plus (+) and minus (-) modifiers, quotes for phrases, as well as the field search specifiers.
+wh* -se*ch will find all pages which have a word that starts with wh and which does not contain a word that starts with se and ends with ch.
"wh* are" will find the phrases where are, what are, why are, etc.

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