I've been using search engines since Lycos and before, so I reflexively use what you call "search engine" language. However, due to the evolution of Google, I've started experimenting with more english-like queries, because Google is getting increasingly reluctant to search for what I tell it in a mechanistic way, often just throwing away words, and from what I've read it's increasingly trying to derive information from what used to be stopwords.

One thing that is very frustrating now is if there are two or three things out there related to a query, and Google prefers one of them, it's more difficult than ever to make small tweaks to the query to get the one you want. Of course, sometimes I don't know exactly what I want, but I do know I don't want the topic that Google is finding. The more "intelligent" it becomes, the harder it is to find things that diverge from its prejudices.