There is definitely something strange happening when trying to search the Library when using quotes to achieve a boolean AND.
In my library I have items:
M01 AA S01
M01 AA S02
M01 BB S01
M01 CC S03
If I search for "M01" I get all these items.
If I search for "S01" I get the 1st and 2nd items
If I search for "M01" "AA" I get nothing (should get the first 2 items)
If search for "M01" "CC" I get the fourth item
If I search for "M01" "S03" I get nothing (should get the 4th item)
Just how is this searching supposed to work?