General Principles

By default, Heurist searches are partial string matches and require ALL search terms to be present:

temporal map requires that both temporal and map be present somewhere in the title
temporal will also match temporality and map will match mapping and unmappable
the search terms need not be in order, adjacent or whole words, and it is not case-sensitive
to match a phrase, enclose in quotes: "temporal mapping"
to match at least one of the search terms, place uppercase OR between them: temporal OR mapping OR GIS
to exclude records in which a search term occurs, use minus sign immediately at start of term, without space: -temporal
to match values without partial string matching, use an equals sign instead of a colon: title="google calendar"
to match values that are less than or greater than the search term, use < and > instead of a colon: field:year>1980