Perhaps you should try some spelling variations:
thanh trung » thanh tung
phuong danh » phuong anh, phuong dinh, phuong hanh
phuong dan » phuong doan, huong dan, phuong lan
tieu sach » chieu sach, dien sach, te sach
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - thanh trung cua nhung ((phuong dan) or (phuong danh)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - thanh trung cua nhung ((phuong dan) OR (phuong danh)) toan tap.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - thanh trung cua nhung ((phuong dan) or (phuong danh)) toan tap*.