[Wikipedia-l] missing search results

[Andre Engels]

One of the users of WikipediaNL found that when one searches for the word 'het'
on WikipediaNL, only hits in the article title are found, none in the article
text. When doing a similar search on the English version, it behaves normal.
Apparently common words are being excluded from full-text searches.

My questions:
* What are the criteria to exclude such words from searches?
* Is it possible to get for a language a list of such excluded words?

Andre Engels