FortiMail - Custom dictionary regex pattern

How can I match multiple words in an "and" expression, e.g. "one" AND "two" AND "three"

...anywhere in the body of an email in any order spanning multiple lines/paragraphs.

Example meaningless text where not all targets are on the same line or in the same paragraph:

"

I have two apples with four birds and dog with three cats But one dog doesn't have three cats I have one three and 2 cats have two post-its with targets and one country

 "