Search: Find Items with specific values in text fields

corporateInformation.note is the fieldpath > layer CorporateInformation, field note

The fieldpath extension simple tells Picturepark to look for the value from the simple analyzer, usually the default for non-translated text. 

The simple analyzer does not know about plurals or word stems.

The fieldpath extension language (fieldpath.language:xxx) tells Picturepark to look for the value from the language analyzer, usually used for translated text fields.

Check in the text field settings which analyzers are used. By default for non-translated text, it is the simple analyzer.