Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
hoc thiet » hoc thieu, hoc thuyet, hoc hien
hanh manh » hanh mang, lanh manh, hoang manh
manh cua » doanh cua, ban cua
cua dong » chua dong, cua cong, cua dang
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
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 - hanh manh cua dong ((cong dan) or (cong tan)) ((toan ban) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet tach - hanh manh cua dong ((cong dan) OR (cong tan)) ((toan ban) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc thiet tach - hanh manh cua dong ((cong dan) or (cong tan)) ((toan ban) or (toan tap))*.