Perhaps you should try some spelling variations:
phuong dan » phuong danh, phuong doan, huong dan
tieu sach » chieu sach, dien sach, te sach
hanh tang » hanh trang, anh tang, hanh mang
cua trung » cua truong, xuan trung, ba trung
cua nhung » va nhung
dan toan » van toan, dan than, manh toan
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: theo tieu sach - hanh tang ((cua trung) OR (cua nhung)) phuong dan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - hanh tang ((cua trung) OR (cua nhung)) phuong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh tang ((cua trung) OR (cua nhung)) phuong dan toan cao*.