What does sort by relevance mean?
When looking for articles of interest, the service may display the results sorted in different orders, e.g. by name, price, or size.
However, it is possible to display the results sorted by relevance. In that case, the articles which, according to the search engine, best match your criteria will be displayed at the top of the list.
For example, if you are looking for "autumn rose", roses in autumn colors will be displayed first. The remaining roses (e.g. in spring colors) and autumn articles other than roses (e.g. arrangements) will be displayed only at subsequent positions of the list.