Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
thanh tung » thanh cong
phuong dan » phuong danh, phuong doan, huong dan
tieu sach » chieu sach, dien sach, te sach
cua nhung » va nhung
tung cua » trung cua, tuong cua, dung cua
toan cao » toan ban
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 tung cua nhung phuong dan ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - thanh tung cua nhung phuong dan ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - thanh tung cua nhung phuong dan ((toan cao) or (toan tap))*.