Do not search for the file; search for the people who have the file.

In underground literary circles, "She Liu" is the title of a 2003 novella by a pseudonymous author known only as "Hei Ge" (Brother Black). The book follows a migrant worker’s life navigating the illegal sand dredging operations on the Yangtze River.

If "She Liu" is an academic text, go to your local university library. Librarians have access to global catalogs (WorldCat). If a library in Tokyo or Berlin has a physical copy of She Liu, the librarian can scan it and email you a PDF for a small fee ($5–$15).