The more robust search option with multiple search fields and the "and/or" operators is a feature that we absolutely would need when working directly with the ASSET RECORDS, but NOT with work orders.
We utilize this type of robust search regularly, for assigning, re-assigning, retiring and doing other group updates, or just searches to determine status and availability of particular assets, by model, purchase order number, expiration date, assigned class year, etc., including any number of custom fields. It allows us to sort, select and bulk update lists of equipment, and also to export them for use in spreadsheets as needed for past usage and planning.