I have run across Boolean Cookies (the ones you eat). Going to order some!
Discoveries await you if you study Google Custom Search Engines. Very interestingly, as I have determined bases on tests, Custom Search Engine more: operators support a different order of Boolean operators compared to Google.
On Google, ORs have the highest priority On CSEs, ANDs have the highest priority.
Consider an example:
It is a search for people with a job title containing:
(microsoft AND developer) OR (google AND lead) OR (amazon AND manager).
In most practical cases, Google’s order of Boolean operations