Broadly speaking, you can write anything on any topic within your major, as long as you have new ideas, new discoveries, new perspectives, new research methods, new materials and so on.

The second step is to search the literature around the topic of the paper.

This step of work is very hard, so you need to be mentally prepared. In China, at present, most Chinese academic materials are not online and need to be searched manually, so it may take a lot of time and energy to find Chinese materials in this step.

The third step is to put forward my own theoretical assumptions about the topic or specific problems to be studied.

The fourth step is to decide which research method to adopt.

The fifth step is to design the framework of the thesis.

Step six, start writing.

The obtained literature, investigation materials and various arguments are analyzed and classified, enriched into chapters respectively, and then expounded and demonstrated. This is actually the thesis writing itself, so this description is to let the author know the process of thesis writing. All kinds of materials and arguments cannot prove arguments or explain specific problems in nature, but need the author to organize arguments.