I'm not sure this is the right place for this question, but here goes.
The script used by Hebrew is hardly used by any other language (apart from, e.g. Yiddish). Thus Hebrew Wikipedia entries normally end up as the first (or at least second) hit on DDG as it is on other engines.
Recently we noticed that Google fails to index many new articles. It seems to be that those are articles that that have ' in them. Compare the old article
) to a some more recent ones:
When I search for the latter in both DDG, Yahoo, Bing and Google, I seem to get similar results - the Wikipedia article is not even listed.
This kind of behavior makes me thing it is an issue with the site, but I see it discussed there for quite some time now, and being blamed on a "Google bug". Any hint as to what may be wrong here?