What Is the Default Search Combination, and Or OR

Search statements:

Search term for:

sailing, sailors, sailboats, etc.

computer(s) and computing

woman or women wom?n

rock climbing

Try some searches in Google: Instead of AND use + to show word must be included, or – to show not included.

No space between + or – and the word

-Iraq

+hockey

election 2004 candidate issue

hybrid electric gas vehicles

search engine tutorial

“dog breeders” –poodles

+dementia –alzheimers

astronaut and spaceship Or “outer space”

Cowboy* OR (gold rush and California) AND (1849 or nineteenth century)

Rock NOT music

recipe +your favorite ingredients

“Rock climbing”

pizza with pepperoni and ham but no olives or garlic

"pan pizza" AND (pepperoni OR ham) AND olives

“trial procedure” 18400

-syllabus 18000

+court 13600

+ criminal –civil 2730

-.uk 2450

+rules 783

“mock trial” 143,000

“mock trial procedure” 76

+rules 60

+order 56

dolphin* 3,780,000

+dolphin* +training +career -football -miami -software 18,200

-book* 10200

-video* 8590

-Ireland 7910

-Celtic 7780 query limit 10 words

What is the default search combination, AND or OR?

For Discovering Collection

For Google

For MAS Online

For Britannica Online School edition?