The research was conducted based on theoretical frameworks, previous research findings, and the English learning situation of non-English major students at University of Transport and Communication Ho Chi Minh City Campus (UTC HCMC). This study is a combination of qualitative and quantitative approaches. Survey results from over 400 non-majored students at UTC HCM campus from February to May of the year 2023 showed that they are aware of the importance of English communication skills in general and English vocabulary in particular. However, their actual learning practices do not fully reflect this awareness. Furthermore, the experimental study results demonstrated the effectiveness of two proposed methods: (1) vocabulary flashcards and (2) repeated writing of words, both of which are proven to be effective and widely applicable for learners at UTC HCMC.