Help please

We're using Marc21.
I'd like to know if there is a solution about this :

1. I've a bibliographic record with a 245 tag containing a subtitle in subfield b  (ex:  245    0    0    \a Intellectual news : \b review of the International Society for Intellectual History)

2. I've a bibliographic record with a 780 tag record linking to the 245 tag of the first record.  (ex: 780    0    0    \t Intellectual news : review of the International Society for Intellectual History \x 1561-5324)

3. I've a bibliographic record with a 785 tag record linking to the 245 tag of the first record.  (ex: 785    0    0    \t Intellectual news : review of the International Society for Intellectual History \x 1561-5324)

I'm searching in the client and in the opac the journal title : Intellectual news : review of the International Society for Intellectual History
and the result is 2 differents entries :

1 Intellectual news : review of the International Society for Intellectual History  (coming from the 245 tag of the record 1)
2 Intellectual news : review of the International Society for Intellectual History  (coming from the 780 & 785  tags of the records 2 & 3 which match together )


The reason is that  there's no subfield b appropriate to a remainder of title  in the 78X tags.

Do you have a solution to get this result :

3 Intellectual news : review of the International Society for Intellectual History (matching of all 245 and 78X fields )


Henin Marie-Pierre
Serials Librarian
Académie Louvain / Fundp Namur