Perhaps you should try some spelling variations:
thiet thanh » thien thanh, thi thanh, viet thanh
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thiet » hoc thieu, hoc thuyet, hoc hien
tranh cua » doanh cua, manh cua
cong doan » cong hoan, dong doanh, cong dong
cua dang » cua cong, cua ban
cong dan » cong tan, huong dan, cong dong
cong san » cong tac

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 thanh - hanh tranh cua dang ((((cong doan) or (cong dan))) or (cong san)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet thanh - hanh tranh cua dang ((((cong doan) OR (cong dan))) OR (cong san)) phan tu.
• Adding a wildcard symbol may retrieve word variants: hoc thiet thanh - hanh tranh cua dang ((((cong doan) or (cong dan))) or (cong san)) phan tu*.