Different concepts should be separated by commas.
For example: video, photography.
Words not separated by commas will be searched for as one string.
For example: video art looks for the string "video art" and not for "video" and "art" separately.
Umlauts should be written as follows: ae, oe, ue for ä , ö , ü
For example: Duesseldorf searches for "Düsseldorf" and for "Duesseldorf" and for "Dusseldorf."
ß, "Scharfes S", should be written SS.
For example: SchloSS searches for "Schloß" and for "Schloss."
Vowels with accent acute should be written followed by '.
For example: entre'e searches for "entrée" and "entree."
Vowels with accent grave should be written followed by ".
For example: premie"re searches for "première." and "premiere."
Vowels with accent circumflex should be written followed by *.
For example: po*les searches for "pôles" and "poles."