Very easy to test that question.

*lots of items here*
[6:21 p.m.]14 matches found containing “augmented.”

[6:21 p.m.]　>>Augmented Primal Ring of Fending
[6:21 p.m.]1 match found containing “augmented primal ring of fen.”

[6:22 p.m.]No matches found containing “Augmented Fending.”

So you can include more than one search term, but it acts like the old market board where you can't break the context.