Please note possible use of search operators:

Using a compound search term by means of logical operators allows a complex search. The following operators can be used:

"and" – Entering of two or more search items separated only by blank space allows search of pages containing all of the sought items.

"or" – Entering the "|" operator allows the search for documents containing one or several of the search items.

"not" – By entering the "-" operator (minus) a certain item can be excluded from the search.

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