Meaning above word form
Related formulations can come with the same search need, even when query and product text do not literally match.
Glossary
Semantic Search
Semantic Search tries to recognize the meaning behind a search query, so that relevant products do not depend solely on the exact same words in the catalog.
Where useful?
With natural language, descriptive wishes and customer terms that differ from supplier or catalogue language.
Not the same as AI Search
Semantic Search is one approach within more modern search; AI Search can also combine other signals and techniques.
Exact matching is required
Brands, SKUs and model codes should not be watered down by semantic interpretation.