Album titles and search algorithm: strange behaviour

Legacy versions Library Management
1

Dear all,
I have 3 CDs in different directories that compose the same album (Nozze di Figaro).

Here they are:
CD1
Title: Le Nozze di Figaro - Erich Kleiber, Wiener Philharmoniker, Wiener Staatsopern…
CD2
Title: Le Nozze di Figaro - Erich Kleiber, Wiener Philharmoniker, Wiener Staatsopern…
CD3
Titre Le Nozze Di Figaro - Weiner Philharmoniker (disc 3 of 3)

Search for “Kleiber” returns CD1 (Should return CD1 and CD2)
Search for “Nozze di Figaro” returns CD2 et CD3 (Should return all CDs).

I checked the directory content, there is a cue file which does not seem to be used.

Any idea?

2

Finally I changed the album title for all the three CDs, and now it works. Maybe display of album title failed to be WISIWYG and titles were different where they appeared to be identical.