Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
hoc thiet » hoc thieu, hoc thuyet, hoc hien
tranh cua » doanh cua, manh cua
cua dang » cua cong, cua ban
cong dan » cong san, cong tan, cong dong
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thiet tach - canh tranh cua dang ((cong dan) or (huong dan)) ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet tach - canh tranh cua dang ((cong dan) OR (huong dan)) ((toan cao) OR (toan ban))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thiet tach - canh tranh cua dang ((cong dan) or (huong dan)) ((toan cao) OR (toan ban))*".