Perhaps you should try some spelling variations:
chiet tach » chieu sach
truong cao » truong dai
nhung cong » dung cong, thong cong, hang cong
huong cua » dung cua
van nhanh » van thanh, van khanh, van nhan
ho chiet » ho chieu, ho thiet, hoc thiet
van hanh » van thanh, ban hanh, van anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chiet tach - manh ((huong cua) or (truong cao)) nhung cong ((van nhanh) OR (van hanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - manh ((huong cua) OR (truong cao)) nhung cong ((van nhanh) OR (van hanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiet tach - manh ((huong cua) or (truong cao)) nhung cong ((van nhanh) OR (van hanh)) cau".
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - manh ((huong cua) or (truong cao)) nhung cong ((van nhanh) OR (van hanh)) cau*.