I just checked it on DuckDuckGo,Yahoo,Bing https://duckduckgo.com/?q=birthde

https://in.search.yahoo.com/search;_ylt=A0SO82JB9G1TPxoAHL.7...

https://www.bing.com/search?q=birthde&qs=n&form=QBLH&filt=al...

And they all shows correct results.