Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
theo chieu » theo tieu, theo chu, thi chieu
hanh duong » thanh duong, khanh duong, anh duong
phuong dan » phuong danh, phuong doan, huong dan
hanh dong » anh dong, ha dong
ho chieu » hoc thieu, doi chieu, mot chieu
dan toan » van toan, dan than, manh toan
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: ((ho chieu) or (theo chieu)) sach - ((hanh duong) OR (hanh dong)) va nhung phuong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sach - ((hanh duong) OR (hanh dong)) va nhung phuong dan toan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chieu)) sach - ((hanh duong) OR (hanh dong)) va nhung phuong dan toan tap*".