Perhaps you should try some spelling variations:
"wikt:interlude" » "witt:interlude", "wik:interlude", "wilt:interlude", "wikt:interludio"
"wit:interlude" » "wit:interludio", "whit:interlude", "witt:interlude", "wait:interlude"
"pitt:interlude" » "pitt:interludio", "pict:interlude"
"whitt:intermedio" » "whitty:intermedio", "white:intermedio", "whit:intermedio"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("wikt:interlude" OR "wit:interlude") OR ("pitt:interlude" OR "whitt:intermedio"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"wikt:interlude\" OR \"wit:interlude\") OR (\"pitt:interlude\" OR \"whitt:intermedio\"))*".
• Removing quotes may allow a broader search: (( wikt:interlude OR wit:interlude ) OR ( pitt:interlude OR whitt:intermedio ))*.