Perhaps you should try some spelling variations:
cong phuong » cong thuong, cong huong, dong phuong
phuong dan » phuong danh, phuong doan, huong dan
hoc chieu » hoc thieu, ho chieu, hoc hien
cong cuu » cong cu, cong cua, song cuu
cuu cong » cua cong, thu cong, cac 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 cuu cong 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 cuu cong phuong dan phan tu*.