[moultano]

Ironically, this sort of pigeon-holing is mostly a problem with treating query text literally (or syntactically.) Language is full of shibboleths, and people indicate their worldview by the words they choose to use. The more naively a search engine treats the query, the more likely they are to find pages that only agree with them.

[ddnb]

I honestly doubt the use of certain words are going to limit your search results more than the way google is 'personalizing' search results by looking at your history/interests and basing it's results around that, do you have any sources for your claim?

[moultano]

If you know the language to use, you can get into that world yourself. For instance [did dinosaurs exist]. Only creationists talk about dinosaurs that way, and so you only get creationist content returned. People with a conventional view of natural history never put "dinosaur" and "exist" together.

Contrast that with [did dinosaurs live] which has a mix of creationist and normal results, despite meaning the same thing.

[pdpi]

Maybe. The naive approach definitely has a strong filtering effect, but there's more than one non-naive approach, though. Some of those are narrowing, and others are widening. Google seems to prefer the narrowing ones.