I was going to suggest that google should insert a short "your search [A +B 'C D E'] returned x results" and then follow up with "Searching for [A B C D E] returned y results" to separate the results.

Now I think about it, Google is most likely doing this intentionally, to get more data for "natural language search" ie, to infer what people might mean by combining the results, then seeing what people click on to validate the technique.

This does mean that intentional input won't work anymore, unless there is a means to turn this semi-semantic search off.

Hmmmm... maybe DuckDuckGo would be a suitable alternative?