hmm ok, adult related keywords are of course different. Search engines might not get you anything on this.
I think problem is that it scrapes images of all words and not of words combination (keyword).
As example if I am scraping images for "adult sex chat" - it gives results for all 3 words independent - what's why I am getting tons of irrelevant images.
if you look closely to the log, you see it is using all the keywords. Just that that other words are sensitive and probably removed by the search algorithm itself.
Comments
I am getting totally irrelevant images. It is adult niche keywords, when scraping articles with images - I removing everything from "Filter / Modify".
It seems results are worse with quotes. Well, as I see - I should add images manually...