To enrich their vocabulary, learners neted specific strategies to expand their vocabulary and avoid obstaclesdue to lack of vocabulary. Meanwhile, when teaching freshmen at Lac Hong University, the author realized that manystudents still had difficulty learning vocabulary because of not knowing how to learn it effectively. Therefore, the authorconducted this research to find out the strengths and weaknesses in the vocabulary learning strategies of the research subjects.Then, the author gives suggestions to overcome the difficulties in learning vocabulary. By the methods of document analysis,questionnaire, interview, and data analysis, the author conducted this research. The results show that there are a variety ofstrategies used by the students to learn vocabulary, the strategies that are most often used by students as well as those thatare not used to their full potential. As a result, not only learners but also teachers can adjust their learning strategies orteaching practice to help students make greater progress in learning vocabulary.