If I understand your question correctly, you want to know how to write the title for a thesis and/or an article.
The title for a thesis or an article can reflect the nature of the research presented in it and should not be a very general/broad topic; it should let the readers know the core focus area of your research. It can correlate with the purpose, theories supported by your research, the variables tested, the design, methodology adopted, etc. Avoid vague and very long title; also, do not use abbreviations/acronyms in the title. It is best to use keywords that relate to your topic in the title for a thesis or an article so that other researchers can find/search your work easily. Sometimes, the thesis and a journal article have stipulations of word counts; hence, you will need to make sure that you adhere to these guidelines.