| Type this… | To find… |
| United States | those words, in that order |
| States / United | either word (or both) |
| France & Errors | only documents that contain both words (documents that contain just one of the words will be ignored) |
| Postal Markings ! Metered Mail | “Postal Markings” but not “Metered Mail” |
| Perf* | any word in the field that begins perf, i.e. Perfins, Perforations, particularly good when you are not sure whether a word should be plural or singular (perfin vs perfins) |
| In the case of the Boolean operators (& / !) | There should be a space between the words and the operator,
i.e.
France & Errors... |
| In the case of Truncation (*) | There should not be any spaces between the last letter typed and the star (Perfi*) |