However, recently I saw somewhere online, someone having written the word {vanglu'ghach}, which I can't understand.

What could {vanglu'ghach} mean ? Could it mean "an unspecified action" ?

Does using the suffix {-lu'} in conjunction with {-ghach} produce a word, which actually makes sense ?

This is an old question. I think the combination is meaningless. If it meant anything at all, it would probably be action taken by someone unspecified, but I don't think it really means that.

-- 
SuStel
http://trimboli.name