Like any other library database, WorldCat UMD offers Boolean searching (and, or, not), truncation symbols, wildcards, and phrase searching.
The following table provides a good summary of Boolean operators and phrase searching. Note, AND, OR, and NOT must:be in all-caps:
If you want to get more precise searching you can use index labels. This technique is similar to using the drop-down menus in the advanced search. In fact, anything you can do in the advanced search can also be replicated in the single search box by using index labels. In addition, and importantly, the index labels offer many more choices that what you get from the advanced search screen.
You can get an idea of how index labels work by doing an Advanced Search and then examining the search box in the results screen. This search…
…is the same as this one:
The most commonly used index labels can be found here:
For the full list of available index labels see http://www.oclc.org/us/en/support/documentation/worldcat/searching/searchworldcatindexes/default.htm
Here are some useful ones: