«+» - Finds books that contain all the terms that are preceded by the + symbol.
«-» - Excludes books that contain a term or phrase.
«&&» - Finds books that contain all the terms or phrases.
«OR» - Finds books that contain either of the terms or phrases.
«*» - Matches any one or more characters. For example, new* matches any text that includes "new", such as newfile.txt.
«""» - Finds the exact words in a phrase.
«~6» - Maximum number of words between the words from a search request allowed in the search result