The simple search mode is the easiest way to start a search. Because the search is performed in all fields, the method produces often a long list of results. If you start your search from there, you will be able to refine your search by adding criteria directly in the result page.
A search with more than one word will give as result only the sources that match all the criteria. However, the words do not have to be in the same field.
Phrases, or expressions, can be given between quotes: for example "benedictus dominus".
All the different options can be combined. For example "Ave Maria" CH-E matches all the sources of the Einsiedeln monastery library with Ave Maria.
For non ASCII characters, such as Cyrillic words, the search works as long as both versions (original and transliterated) were entered in the database. For example kalinka and калинка will return the same results.
The advanced search enables you to quickly find results when you already have an idea of what you are searching in the database