XF 2.3 Enhanced Search similar thread suggestions prioritize semantic similarity over exact title matches

[SrOTurK]

Hello,

I believe there might be a problem with the Advanced Search's related topic suggestion system.

When creating a new topic heading, the system seems to prioritize semantic/content similarity between headings rather than direct heading similarity.

Example:

Current topic heading:
"ViPSrO Online 120 Cap Silkroad PvP Server"

While writing:
"Vipsro"

The suggestion system for similar topics does not suggest the current ViPSrO topic for the following reason:

*The same words appear in the subject heading.
* A standard search will find the topic quickly and accurately.

Instead, the system only suggests other PvP server topics that share similar content patterns, for example:

• 110 covers
• EU/Switzerland
• progressive
• balanced
• play2win

This behavior makes duplicate content detection unreliable in communities where the topic/project/server name is the primary identifying element.

It appears that the recommendation algorithm places too much weight on semantic/full text similarity and insufficient weight on exact or partial matches with the subject line.

In a related topic suggestion system, is it possible to prioritize topic headings that exactly match before using semantic similarity scoring?

Thank you.

 

[SrOTurK]

Enhanced Search appears to index domains as a single token, preventing partial matches.

Example:

Thread title:

KeyfGame.com.tr | 120 Cap EU & CH EMEK SERVER - Server Online - Uniqulerden Silk Düşür

Search results:

• Searching for "KeyfGame.com.tr" returns the thread correctly.
• Searching for "keyf" returns no results.
• Searching for "120 cap keyf" returns no results.

Expected behavior:

Since the domain name appears in the thread title, searching for a partial term such as "keyf" should return the thread. Users typically search by server name rather than the full domain.

This behavior also affects similar thread suggestions because a title containing "KeyfGame.com.tr" is not matched when only "keyf" is entered.

Is this expected analyzer/tokenizer behavior, or should partial matches work for domain names contained in thread titles?