OPenn utilizes standard Google searching techniques. For example:
| LJS 445 | Will return all pages that include the text LJS and 445. This will include both html and xml pages. |
| "LJS 445" | Will return only pages that include the exact text LJS 445. This will include both html and xml pages. |
| "historiated initial" -xml | Will return only html (not xml) pages that include the exact text historiated initial. |
| "Book of hours" -LJS | Will return html and xml pages that include the exact text Book of hours and do not include the text LJS. |
| medical AND diagram -xml | Will return only html (not xml) pages that include the text medical and diagram. |
| parchment OR paper -xml | Will return only html (not xml) pages that include the text parchment or paper. |
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