Master's thesis is one of the important academic achievements in the postgraduate stage, but in the process of writing, the following problems often appear:

1. Unclear research questions: Some graduate students can't accurately grasp the core and key points of the research questions, which leads to unclear or too broad research questions and lack of focus.

2. Improper research methods: Some graduate students may pursue novelty or complexity too much when choosing research methods, and ignore the actual needs of research problems.

3. Insufficient data collection and analysis: Some graduate students may have insufficient data collection or inaccurate data analysis in experiments or investigations, which leads to the conclusion that the research results cannot be supported.