Perhaps you should try some spelling variations:
chua nhung » cua nhung, thuat nhung, cua chung
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, hoc hien, hoc dieu
cong chua » cong cua, cong chuc, con chua
ho chieu » theo chieu, hoc thieu, doi chieu
tan toan » tap toan, van toan, dan toan

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 (ho chieu)) sach - thanh cong chua nhung cong ((tan toan) or (tan tran)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (ho chieu)) sach - thanh cong chua nhung cong ((tan toan) OR (tan tran)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (ho chieu)) sach - thanh cong chua nhung cong ((tan toan) or (tan tran)) tap".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (ho chieu)) sach - thanh cong chua nhung cong ((tan toan) or (tan tran)) tap*.