Searching for several words returns the results in random order instead of sorted by relevance. For example:
- https://ru.wikipedia.org/w/index.php?search=Орден+"Святого+Марка"&title=Служебная:Поиск&profile=advanced&fulltext=1&advancedSearch-current={}&ns0=1 Searching for Орден "Святого Марка" returns the page Орден Святого Марка third instead of first as I would've expected since it is the most relevant result. It also returns the page Награды Египта (which also contains this exact sequence -- Орден Святого Марка) close to the end of the 1st page.
- https://ru.wikipedia.org/w/index.php?search=Орден+Святого+Марка&title=Служебная:Поиск&profile=advanced&fulltext=1&advancedSearch-current={}&ns0=1 Searching for Орден Святого Марка (no quotation marks) does return the page Орден Святого Марка first but it doesn't return Награды Египта on the 1st page at all -- again, despite containing the very sequence that is searched for.
My search settings are set to default so it's what most users get.