> That hamster really learned how to use a search engine.

Unfortunately, the things that hamster learned are no longer relevant. Using + and - on keywords no longer works with Google - your luck on other search engines will vary. Sometimes adding quotes around the keyword / keyphrase functions as +, sometimes it does not. There is no reliable way to get - behaviour anymore. And even verbatim search sometimes includes synonyms.

And allmighty help you if there is a product or popular media figure with the keyword you are searching. The search results will be flooded with links to some Marvel character that happens to share a name with the *nix daemon whose error messages you are searching.