[Feature Request] Search by thematics

[Cwpute]

Checklist

• [X] This issue contains only one feature request. I will open one issue for every feature I want to request.
• [X] I checked, but didn't find any duplicates (open OR closed) of this issue in the repo.
• [ ] This feature is merely an UI/UX update.
• [X] This feature is not going to conflict with many of the existing features/options.

Is your feature request related to a problem? Please describe.

As i understand it, the search engine only allows searching by author and title, but i wanted to search about thematics. For example i want books about astrology, but if i search for astrology, there is only wne book that pops up, which contains Astrology in its name, whereas if i search for stars or constellation i can see many books with Astrology labeled as one of the thematics fwr these books.

Describe the solution you'd like

Being able to search by thematics.

How will you/everyone benefit from this feature?

More search option will allow us to discover even more books and fulfill more precise needs.

Additional context

No response

[starry-shivam]

I don't think gutendex api provides way to search books based on thematics, but I'll have a look.