Another very useful thing to use when building lists in the Search Center is the ability to search on multiple fields. This is easily done.
1. In your Search Center, click on the little "plus sign" button to the far right of the Search Field.
2. You'll see that an additional "line" to search with is added. You may choose a different fieldname, operator and value.
3. You may continue to add lines in this fashion by hitting the plus sign again. To remove a line, simply click the minus sign.
This is a very effective way to generate a somewhat complex list easily, Try it!