Use to search for more than one term in a precise sequence using quotation marks
Boolean operators AND, OR, NOT (written in uppercase!)
Use to combine search terms
searches for hits that contain all of the search terms
marketing AND tourism
>> searches for hits containing both the term marketing as well as the term tourism
searches for hits that contain one of the search terms
college OR university
>> searches for hits containing either the term college or the term university
When searching for certain topics, it is helpful to enter the terms in both German and English and combine these using the OR operator.
searches for hits that do not contain the search term that appears after NOT
president NOT obama
>> searches for hits containing the term president but not the term obama
In some circumstances, relevant hits may be excluded when using the NOT operator.
When there are a lot of hits in the results of a search, these can be narrowed down by selecting the appropriate fields in "Refine your search" on the left-hand side.
Wildcards are used as placeholders
for any character; this is useful when there are alternate spellings
Tos?ana for Toskana, Toscana
for no or any number of characters
comput* for comput, computer, computing, computers, computational etc.