Use English search terms;
we use the Library of Congress classification system,
use the LC subject headings
if you know them.
If you think that the result of your keyword search is incomplete,
please try to use a related term to retry the search.
If you know Chinese,
you can repeat your search using Chinese search terms
in traditional Chinese characters.
However, searching in Chinese is only good for
author and title searches.
Do not use simplified characters under any circumstances;
using them will result in very incomplete searches.