And it includes full-text search across reviews, including highlighting:
A note on language support:
- If you’re searching in a language other than English, content in that language will show up.
- Content in English will always be searched.
- In addition, we make certain fallback assumptions, e.g., Brazilian Portuguese also searches European Portuguese.
In future, it may be desirable to make those search options user-configurable, as well.
The search feature is based on ElasticSearch, an open source search backend used by many websites, including Wikipedia.