This paper evaluates the effectiveness of query translation and disambiguation as well as expansion techniques on the CLEF collections, using the SMART Information Retrieval System. We foucs on the query translation. disambiguation and methods used to improve the effectivensess of information retrieval: expansion via relevance (feedback before and after translation as well as expansion via domain feedback after transmision. This method archieved 85.30% of the monolingual conterpart. in terms of average precision