I asked our Tech folks about it, and here's what they said:
I think what they're seeing is that the suggested searches drop down sometimes shows different results than they were used to with the "regular" search. The one they reference, "Tomatoes, red ripe" (which we have recorded as a USER_DEFINED_GLOBAL food, meaning that a user entered it and we promoted it to everyone) shows up before Red Ripe Tomatoes in the dropdown list, whereas it shows up second in the normal search list. This is because we weight food names that begin with what you typed higher in the suggested searches, and Tomatoes, red ripe begins with "tomato" while "red ripe tomatoes" does not.
Hope that helps,
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