Anyone else (in the UK) notice some tinkering with semantics. There's one term that, for the last 10 days of so, if I add UK to the end returns results similar to previous ones but without UK in the term my site and a couple of other serious contenders drop down a page.
This could be a co-incidence, like for example if something had happened to an important site that back linked to my site and others I'm seeing affected. My reason for asking the question here is to establish if others have seen Google tinkering.
By the way this is just for one two word term and the other terms I follow are not affected.