Blogspot problem

One problem I've noticed with the Blogspot system (besides the fact that it seems to be having lots of communication problems) is that there are no good ways of getting back to previous postings. Considering the fact that this is a Google product, you would think that each user would have a built-in Google search engine that covered his own posts. It would be fine if there were simply a Google search engine for all of blogspot. One could look for one's own posts by restricting the search. And one could look for related posts by broadening the search. As it is, though, if I want to find something I wrote earlier, and if it is no longer in the list of Previous Posts, I have to look at each archived week manually. That's terrible. Google should do better!