Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
theo phap » thi phap
hanh dung » thanh dung, anh dung, hanh dong
cua thong » cua thuong, cua khong, suat thong
cua tong » cua cong, cua dong, cua nong
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: ((theo chieu) or (theo phap)) tinh - hanh dung ((cua thong) OR (cua tong)) huong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo phap)) tinh - hanh dung ((cua thong) OR (cua tong)) huong dan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (theo phap)) tinh - hanh dung ((cua thong) OR (cua tong)) huong dan toan tap".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo phap)) tinh - hanh dung ((cua thong) OR (cua tong)) huong dan toan tap*.