A search for Sunderbans brings up many thousands of photos, only a few related to the Sunderbans - embarrassingly including five of mine.
Maybe Sunderbans means something in one of the 'community languages'.
I don't think they consider that behavior a bug, even though most sane people might. As 'Sunderbans' isn't in the CV, it decides to look for what it thinks are close matches and displays those. Often the results are worthless, but every so often it probably guesses right.
If it's not a bug, it's a bif (badly implemented feature).
(Ooooh, I just made up a techy acronym 
)It is quite good at making a reasonable guess if you make a typo in the Search Box, but if they are making a guess, they should tell you what they're giving you, as in 'did you mean 'Sunderland'? (that's not it, I doubt if any I see were taken in Sunderland any more than the Sunderbans). Otherwise, a searcher has no idea whether they might get relevant results somewhere or there are no hits and they should try elsewhere. I don't think anyone wanting a photo of the Sunderbans wants bikini-clad models on random beaches, which many results (not mine) showed.
