Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
phuong dan » phuong danh, phuong doan, huong dan
tieu sach » chieu sach, te sach, viet sach
dien sach » dien anh
cu nhung » cua nhung, tu nhung, co nhung
dan toan » van toan, dan than, manh toan
toan ban » van ban
cong cu » chung cu

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) or (dien sach)) - thanh cong cu nhung phuong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu sach) OR (dien sach)) - thanh cong cu nhung phuong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: theo ((tieu sach) or (dien sach)) - thanh cong cu nhung phuong dan toan ban*.