How do you use the NEAR operator with multiple words, that are together in the search?

You can’t have multiple words together around a NEAR operator without them being in quotes.

When you are using multiple words - together - they must be surrounded by quotes.

School lunch NEAR/25 Nutrition  -   This fails.
"School Lunch" NEAR/25 Nutrition - This is the correct way

A more complex, but working, example:
(("school lunch" OR "school meal" OR "school breakfast program") NEAR/25 (nutrition OR nutritious OR healthy OR vegetable OR obesity OR obese OR overweight))