Perhaps you should try some spelling variations:
"motet" » "lotet", "moet", "mottet", "moret", "modet"
"motets" » "lotets", "moets", "mottets", "morets", "modets"
"moret" » "moreto", "morel", "morey"
"mores" » "cores", "pores"
"monet" » "monnet", "moneta", "monete"
"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 "motets") OR ("moret" OR "mores")) OR "monet") OR "mote").
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"motet\" OR \"motets\") or (\"moret\" or \"mores\")) or \"monet\") or \"mote\")".
• Removing quotes may allow a broader search: (((( motet OR motets ) or ( moret or mores )) or monet ) or mote ).
• Adding a wildcard symbol may retrieve word variants: (((("motet" OR "motets") or ("moret" or "mores")) or "monet") or "mote")*.