Perhaps you should try some spelling variations:
"motet" » "motets", "lotet", "monet", "mottet", "moret", "modet"
"moret" » "moreto", "mores", "morel"
"mottet" » "mottets", "mouttet", "motte"
"mote" » "motte", "more", "mode"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((("motet" OR "moret") OR "mottet") OR "mote").
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((\"motet\" OR \"moret\") or \"mottet\") or \"mote\")".
• Removing quotes may allow a broader search: ((( motet OR moret ) or mottet ) or mote ).
• Adding a wildcard symbol may retrieve word variants: ((("motet" OR "moret") or "mottet") or "mote")*.