Using Filters
To use filters to refine search results, click the Filter button at  the top left of the Search Results Page.Â
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The Filters dialog shows the different types of filter that can be applied. Click the downward arrow next to a filter type to expand it and view the available values (you can select more than one Filter at a time). To minimize a Filter category, click the up arrow next to its name.
In the example below, the Format Keyword section is expanded.
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Selected Filters appear at the top of the Search Results page. In the example below, two filters are selected.
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To remove a Filter, click the X next to its name.