| Operator | Description | Examples | Search result |
| AND | Both words need to occur in the document. | ”text1 AND text2”
or
”product AND description” | Documents containing both words in one search field (such as page contents or heading). ”text1” has to occur exactly. ”text2” can either be on its own or at the beginning of a word (”text234”)
|
| OR | It is sufficient if only one of the words occurs. | ”text1 OR text2”
or
”cellulose OR cellulosic”
| Documents containing text1 as one word or text2 on its own (”text2”) or at the beginning of a word (text234”) |
| NOT | The word following NOT must not occur. | ”NOT text1”
or
”NOT product”
| Documents that do not contain text1. Really only worth using in conjunction with ”AND” |
| ? | Wildcard for a single character (letter, digit, punctuation mark etc.) | ”te?t”
or
”product C?C”
| Documents containing ”test”, ”text” etc. |
| * | Wildcard for any number of characters
(letters, digits etc.) | ”product*-XL” | ”Documents first containing ”product”, then any number of characters and finally ”-XL” |
