When studying in Australia, international students in general and Vietnamese students in particular meet many difficulties, one of which is writing academis essays/assignments in English. The current case study, applying the cognitivist view, aims at exploring the problems as well as the process of writing academic assignments of a particular Vietnamese student studying at an Australian university. Based on the coding scheme applied by Cumming [1989] and Bosher [1998], the study specifically addresses three major questions: .