I suggest that you can use the public comment app to locate Qingdao and search for "vocational and technical schools", and you can see the results shown in the following figure.
You can try to click on the first search result "Qingdao Vocational and Technical College" to enter the college page, as shown in the figure below.
This page has its specific introduction, including the introduction of the school, professional settings, enrollment brochures, enrollment plans, school admission scores and professional admission scores, as well as the evaluation of other people who have studied in this school.
Click "featured comments" to see other comments from netizens, as shown in the figure below.
You can be a reference for you and your sister. The most important thing is your sister's own choice. Choosing a major that you are interested in and want to study is a comparative aspect, which will play a positive role in future study and even work, and will also make you more targeted and motivated.
The above suggestions are for reference only.