Google maintains an official search help page. Also, see this info graphic on google power searching.
You can do searches for indexed categories in archive grid. For example, the search ("mark twain" OR "samuel clemens") NOT location:virginia will find finding aids that include the phrase Mark Twain or Samuel Clemens, and where the archival institution is not in Virginia.
Useful searches include: title: archive: location: person: group: topic: place: event:
For a more extensive list of search tricks, go to: SearchHelp
1. AND/OR/NOT:
AND retrieves only records that contain all search terms. Use this operator to narrow or limit a search.
OR retrieves all records that contain one or both of the search terms. Use this operator to expand a search.
NOT eliminates records that include a search term or group of search terms. Use this operator carefully to limit a search, as you may unintentionally eliminate relevant records.
2. Plurals:
The plus + will search for any plural formed with either -s or -es.
Example: witch+ searches for witch and witches
3. Truncation:
This allows you to search for a term and its variations by entering a minimum of the first three letters of the term followed by an asterisk *. For example, securit* retrieves records that contain security, securities, securitization, etc.
4. Wildcard:
A pound sign # represents a single character. Example: wom#n searches for woman and women. A question mark ?, alone or with a number, represents from zero to nine additional characters. Example: col?1r searches for color or colour.
5. With and Near:
Type w or with between two terms to search for records containing both terms. Add a number (1-25) to specify the number of words between. Type n or near between two terms to search for records containing both terms, in any order, with no words between them.
Example: chicken n3 egg records containing chicken and egg with either word appearing first and with no more than three other words between them
6. Date:
To search for items dated within a range of years, use the mathematical symbols for "less than" < or "greater than" > with a year index. For examples see the SearchTricks Page.
7. Names:
Enter names in Last (Family) First (Given) Middle format for most databases. Do not include a comma between the last and first name.Use a phrase index when searching for common names. A phrase index contains groups of words or names exactly as they appear in the record. For example, an author phrase index will contain the exact phrase: Bates John Louis rather than the individual names as separate entries: Bates and John and Louis You can identify phrase indexes by the inclusion of the word "phrase" in the index title (Author Phrase).
8. Accents and diacritics. Omit accent marks and diacritics (such as an cedilla or umlaut) and other punctuation marks when entering a search string.
Apostrophes are both:
French word l'information can be searched as linformation or information.
For a more extensive list of search tricks, go to: FirstSearch
1. Phrase searching: Quotations
Formula "X Y"
Example: "Robin Hood"
2. Proximity searching: The 'AROUND' function
Formula: X AROUND(N) Y
Example: "Robin Hood" AROUND(15) violence
3. Using other Symbols
- A minus sign/hyphen omits pages that contain a certain word or phrase.
~ A tilde searchers for the word that follows it and any synonyms.
* Unlike other 'wildcard' searches, an asterisk in google, stands in for a word in a phrase. Ex. All work and no * play make * a dull boy.
4: Using Colons
5. Combining functions: OR, AROUND, and Nesting
Formula: (X OR Y OR Z) AROUND(N) A
Example: ("Robin Hood" OR "Earl of Huntington" OR "Robert Earle") AROUND(15) violence
For a more extensive list of search tricks, go to: GoogleGuide.