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General rules:

  1. Queries are not case sensitive.
  2. You can search for any word except for words on the exception list.
  3. To use special characters in a query, (such as &, |, ^, #, @, and $), enclose your query in quotation marks.

Advanced Search:

The simplest kind of query is a single word. However, to get better search results, follow the appropriate instructions below:

  To search for

Example

Result
1 Documents that match a phrase "big red truck" Documents that contain the phrase "big red truck"
2 Documents that match terms Why is the sky blue Documents about the blue sky, ranked by estimated relevance
3 Both terms in the same document red and dog Documents with both the words "red" and "dog"
4 Either term in a document red or dog Documents with the words "red" or "dog"
5 One term without a second term red and not dog Documents with the word "red" but not "dog"
6 Two terms that are close together in the same document red near dog Documents with the word "red" near the word "dog"
7 All terms beginning with particular combination of letters (great to find words with the same prefix) esc* Documents with such terms as "escarpment", "escape", and so on
8 Inflected forms of a word swim** Documents with alternate forms swim, swam, swum, and swimming
9 Documents with the same file extension @filename=*.pdf All files with the .pdf extension
10 Documents with a specific name but with any extension #filename = readme.* Documents with the name readme and any extension.
11 All terms with some character difference r?n

r??n

matches "run" and "ran", but not "ruin"

matches "ruin" and "rain", but not "run"

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