Sgt_Kickaxe - 10:56 pm on Feb 28, 2012 (gmt 0)
Improvements to foreign language synonyms. [launch codename “floating context synonyms”, project codename “Synonyms”] This change applies an improvement we previously launched for English to all other languages. The net impact is that you’ll more often find relevant pages that include synonyms for your query terms.
That ones not altogether a small change. It might be a reason why exact match results are not returned as often. e.g. The top 10 results may only include one exact match, one source, one official, one video, one image and the rest synonym results. Something to think about when attempting to name an article, see what's already taken first.