Perhaps you should try some spelling variations:
thanh trung » thanh tung
chap thuong » chan thuong, phan thuong, pham thuong
trung chap » trung cap, trung ha, tranh chap
hinh sach » chinh sach, dinh sach, hanh sach
sinh sach » chinh sach, sinh san, sang sach
cong dan » cong san, cong tan, cong dong
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: mo ((hinh sach) or (sinh sach)) - thanh trung chap thuong ((cong dan) OR (huong dan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mo ((hinh sach) OR (sinh sach)) - thanh trung chap thuong ((cong dan) OR (huong dan)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "mo ((hinh sach) or (sinh sach)) - thanh trung chap thuong ((cong dan) OR (huong dan)) toan cao".
• Adding a wildcard symbol may retrieve word variants: mo ((hinh sach) or (sinh sach)) - thanh trung chap thuong ((cong dan) OR (huong dan)) toan cao*.