Unrelated word matches in searches

Issue

In some rare occasions, when searching there can be unexpected results matched by title that are not related to the searched terms.
An example would be:
- Search term: laces.
- Results: laces, laced, but also lacerations.

In summary, this behavior occurs because:
1. laces is analyzed as lace,
2. lacerations is analyzed as lacer,
3. lace is a prefix of lacer,
4. the effective search is lace*.
More in detail, when indexing and search for text, Elasticsearch analyzes it according to language and produces a series of tokens, such as lacer from lacerations.
- Example: ${elasticsearch-domain-and-port}/${liferay-index}/_analyze?source={%22analyzer%22:%22liferay_analyzer_en%22,%22text%22:%22laces,lacerations%22}&source_content_type=application/json&pretty
The effective search by lace* is a consequence of the type of search used for titles: match_phrase_prefix. See Change of behavior in searches after upgrading from Elasticsearch 6 to Elasticsearch 7 connector for more information about this.
Can this behavior be changed?
- Not via configuration.
- An unsupported option is referenced in the same article linked above.
  - In short, the idea would be to change the @Component property title.fields in the class FieldQueryBuilderFactoryImpl.java from name|title to just name.
  - For that, create a .config file with name com.liferay.portal.search.internal.analysis.FieldQueryBuilderFactoryImpl.config and the content title.fields="name", and place it in $LIFERAY_HOME/osgi/configs/.
  - Note: This approach is not supported and it should be thoroughly evaluated and tested if considered.