Guys,
I can understand on when you say query is lacks context but does my Point is those two results are fully irrelevant to my query. its maybe its I have held bar for search engines to high but I don't expect them to read my mind. Because most people when searching with "PDF" keyword will look for:
* pdf reader * pdf editor * pdf converter * pdf search engine etc etc.
But Java or R programming language results, that's not what I am NOT looking for. these two results are not even related.further, for other queries too -- I see ton of such irrelevant results stuffed into google which have to NO relation to original search term. This wasn't always like that -- earlier I used to get better results.
That's why I used this query to express my opinion that search result quality has gone down in past few years & you are now more likely to find spam results for your queries.
--Cross posted from Google Plus