Please check your spelling, nearly all failed searches are misspellings.
The minimum size of search is three characters, you cannot search for ST, th, HP or AP.
There are few articles in languages other than English.
Beware when searching for common words, all of these have more than 500 entries: glorantha, rune(s), runequest, world, god(s), year, moon, rune(s), sartar, greg, heroquest, stafford, cult, game, age.
This site does not contain everything.
Use The BIG Index of Gloranthan archives of mail digests, mailing lists and discussion groups for searching list archives.