[Koha] Relevance in Results Display

[Jerome Trinidad]

Hi Koha Community,

Is it just in our Koha or is something really off with Relevance Sorting of
Koha? In the attached images, the search keywords in the default search are
"triumph of moro" and common logic would say that the material with the
title "Triumph of Moro diplomacy..." should be the number 1 result but
instead it ranked only 3rd in both staff and opac interface with the first
2 results not containing any of the keywords in their title or author. Is
there anyway I or we can improve this?

We're using:
- Koha 17.05.03
- Zebra 2.0.59
- Staff/OPAC SortField: Relevance
- Staff/OPAC SortOrder: Ascending and/or Descending (makes no difference in
our case?)

Thank you and hope to hear from the community.

Regards,
Jerome


Attachment:
Image 1: https://i.imgur.com/PDS1bhB.png
Image 2: https://i.imgur.com/MZXBOcr.png