Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
theo chieu » theo tieu, theo chu
hanh huong » thanh huong, anh huong, manh huong
thi chieu » thi chien, thi hieu, thi hien
ho chieu » hoc thieu, doi chieu, mot chieu
huong va » thuong va, luong va, duong va
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) OR (thi chieu)))) sach - hanh huong va nhung huong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (((theo chieu) OR (thi chieu)))) sach - hanh huong va nhung huong dan toan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (((theo chieu) OR (thi chieu)))) sach - hanh huong va nhung huong dan toan tap*".