Operators
You can use the operators AND, OR and NOT. Capitalization is necessary so that the terms are interpreted as operators. Use small letters if you want to use one of these termes as search term.
Example:
The search for title keywords with the search query "home and garden" (without quotes) results in 15 hits. Each of the titles contains every of the terms "home", "and" and "garden".
In contrast the search of title keywords with the search query "home AND garden" (without quotes) results in 20 hits. The titles don‘t have to contain the term "and" necessarily.
The meaning of operators is as follows:
Objective of your search |
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Operator |
All search terms should appear in the title record
Example: Haus AND Garten
Only title records containing both entered terms will be searched for.
If multiple terms are entered without operators, the terms are interpreted as beeing linked by the operator AND.
Example: Haus Garten
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AND UND |
At least one of the terms should appear in the title
Example: Haus OR Garten
Titles in the hit list contain the term "Haus" or the term "Garten" - possibly both terms.
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OR ODER |
A particular term should not appear in the title record
Example: Haus NOT Garten
The term "Haus" should always appear in title records searched for in this manner but never the term "Garten". |
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NOT NICHT |
Wildcards |
Wild card character for any number of characters
Example: fähr*
Titles containing the keywords Fähre, Fährte, Fährbrücke etc. will be found
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* |
Wild card character for exactly one character
Beispiel: fähr?e
Titles with the keyword Fährte will be found, but not Fähre, Fährbrücke etc.
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? |
Phrase search
If you quote several consecutive terms (e. g. "home und garden"), this phrase will be handled as a single search term and the exact match will be searched. Therefore a phrase search is generally helpful to restrict the number of hits.
Example 1: By chosing the search key „Title keywords“ und entering the terms "home and garden" (wihtout quotes), the search will result in fifteen hits, among them even the title "American farm journal : devoted to farm, garden and home interests" (with search terms in reverse order). By entering the search terms as search phrase (with quotes), the hit list will show only five titles - each of them contains the strings "home and garden" respectively "home & garden" in exact match.
Example 2: By chosing the search key "Title keywords" and entering the terms "Johann Wolfgang von Goethe" (without quotes), the search will result in 45 hits, among them even the title "Erläuterungen zu den Vorlesungen in den Fächern Physik, Mathematik, Chemie an der Johann-Wolfgang-Goethe-Universität Frankfurt am Main. . ." (without "von"). In contrast you will receive 20 titles containing the exact string „Johann Wolfgang von Goethe" respectively "Johann-Wolfgang-von-Goethe" by entering the terms as search phrase (with quotes).