[11:43:13] MSN US: no results found in 3 tries, aborting.
It is making search on MSN US for above keyword at the page 6. And after that it says "no results found in 3 tries". However, there is search results on that page moreover there are other search result pages also.
So my questio is:
What is the reason that it can not find search results, even there are many pages and search results. Does search engine block the certain IP because of repetitive queries and not show results for the certain IPs? Or any other reason?