Perhaps you should try some spelling variations:
"motet" » "monet", "moret", "moet", "mottet", "modet"
"motets" » "monets", "morets", "moets", "mottets", "modets"
"mottet" » "mottets", "mouttet", "motte"
"mote" » "motte", "more", "mode"
"mottes" » "mottoes", "mottets", "mottles"
"lotet" » "loten"

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 "mottet") OR "mote") OR (("motets" OR "mottes") OR "lotet")).
• Removing quotes may allow a broader search: ((( motet or mottet ) or mote ) or (( motets or mottes ) or lotet )).
• Adding a wildcard symbol may retrieve word variants: ((("motet" or "mottet") or "mote") or (("motets" or "mottes") or "lotet"))*.