The search engine tries to match two independant variables -- the searchstring and the list of parishes -- with the corresponding parts in the dictionary entry. Entries matching both criteria are reported.
is actually a Perl expression. As a result, you can query practically everything imaginable and also that sometimes you get Perl errors at the output. If this happens, revise your search. The only exception here is the empty box that matches every query and provides a convenient way to ignore this field. Headwords and the explanatory part (if present) are always separated with double quotes sign ("). Examples: