Google has once again changed their algorithym used to produce search results. The previous changes made Google Search almost useless, but this one renders it completely useless. In many instances a search turns up completely irrelevant sites, leaving the sites you are looking for out on page 3 or 4, where no one will find them.
I believe there is an insidious, greedy purpose to this - Google is trying to force businesses to use Adwords, their pay-per-click service.By moving legitimate businesses out of the search, those businesses must now pay Google to get listed, or they just do not show up where folks can find them.
Google is arrogant enough to think they can get away with this - and maybe they can, since so many people use Google automatically, without THINKING. But it will cost them users. More and more people who bother to THINK, and try something else, are finding much better, and more relevant search results from services like BING.
I use Bing now, exclusively. That's because I like to find what I am looking for. Perhaps you should give it a shot - run a search for something you are seeking on both Google and Bing, and see which one delivers the best results.