Perhaps you should try some spelling variations:
dong phuong » duong phuong, dung phuong, dong huong
phuong dan » phuong danh, phuong doan, huong dan
hoc chieu » hoc thieu, ho chieu, hoc hien
cong thu » cong thuc, cuong thu, hong thu
thu dong » thuy dong, tu dong, thu cong
dan phan » doan phan, dan chan, van phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chieu) or (toc thieu)) sach - thanh cong thu dong phuong dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (toc thieu)) sach - thanh cong thu dong phuong dan phan tu*.