Abstract. This study explores the writing challenges faced by TVL students in Practical Research. It aims to understand students' difficulties during the pre-writing, writing, and post-writing stages and how these affect teaching strategies. Using a Multiple Case Study design, structured interviews were conducted with students, a research teacher, and a school head. Thematic analysis and comparative data analysis were used to interpret the findings. Results show that students struggle with research due to limited knowledge, lack of resources, and group cooperation. They face difficulties in topic selection, research question formulation, data analysis, and writing mechanics, leading to academic pressure. These issues impact the teaching of Practical Research by making it harder to achieve curriculum goals and affecting students' language skills and school performance. The study highlights the need for improved learning materials to help students develop better research writing skills. The findings suggest that enhancing students' writing abilities can improve overall academic performance and better equip them for future research endeavors, potentially leading to improved outcomes in technical vocational education.

Keywords: Academic performance; Multiple Case Study; Practical Research; Thematic Analysis; Writing Challenges.